Böcker i The Fourth Level-serien

55-year old eccentric billionaire, Charlemagne de la Cabernet, had thought that he had lived the good life filled with adventures, mystery-solving, innovation, and inventing... until now. At his age, he has found himself stuck in the mud of a deep depression without the will to find, or return, to what had once motivated him. In his last act, he intends to sell off his family's legacy, Cabernet Industries, a multinational billion-dollar conglomerate with stakes in almost every economic sector and roots to the nineteenth century.However, on the day that he intends to finalize the liquidation, Charlemagne finds himself responsible for a fourteen-year old orphan from Harlech, Diana Cambridge, which forces him to delay his plans until Diana can be moved to a foster home. Diana, horrified by Charlemagne's plans to sell the company and its various assets to a group of unreliable, amoral, and malicious multinational corporations, she allies with Charlemagne's brother, Salmar Cabernet, and his own fourteen-year adopted son, Tristan Merrick, to attempt to bring Charlemagne back on his feet.Can the three of them return a smile onto Charlemagne's face? Or will the adventure end before they can even begin?

When a bizarre domestic disturbance in Allabrese catches Charlemagne de la Cabernet's attention, it quickly become his latest project to distract himself from the tensions between himself and the Medici family. The repeated incidents in the weeks that pass leave Charlemagne unable on his own to solve the mystery that haunts the town. In addition, the local police led by Cole Phillips causes the police to look to him with suspicious eyes, especially as Charlemagne continually annoys and antagonizes the police chief.Meanwhile, Diana and Tristan struggle to adapt a friendship, especially as the two antagonize each other as well. Tristan's cluelessness to Diana's expectations draws a misunderstanding that worsens the tension between the two.Can the two adversaries befriend each other? And what could be upsetting the local townspeople? Is it all just a hoax? Or is there something more sinister going on in the town of Allabrese?

Diana Cambridge cannot take it anymore. The rural life in Allabrese has become too much for the city street orphan that she is, or so it seems, as her behavior appears to have changed since the last adventure. However, Diana is able to find solace in an unexpected friendship with a strange black horse and an estranged black aristocrat, Arturo Medici. In addition, Diana soon finds herself competing in equestrian races to cope with the anxiety that pulses from within in an attempt to run from what she cannot run from.Charlemagne and Tristan are aware of the change in Diana's behavior, but Charlemagne is powerless to intervene and instead antagonizes poor Diana, while Tristan is conflicted by his own emotions, and the two instead worsen the situation. Tristan, whose own ego and buried emotions from a former trauma keep him from approaching Diana, the two are at risk of indefinitely separating themselves and going their own way.What aches poor Diana's heart? Was it the rush of the last adventure, Tristan, or is there more from her former life that she is hiding? Will Tristan overcome himself and intervene, or will he let Diana consume herself?

After accepting an offer from Audric Zimmerman to participate in an underground race, Charlemagne takes the kids and his intern from Oxford University, Johnathan Southern, to the land of the Pharaohs in search of the Amulet of Ra, an ancient and mythical artefact that once belonged the kings of this realm. Charlemagne, having once sought the artefact on his own years ago, is pressured to return to the quest as others amass and seek to collect the fifty million dollars being offered by the unknown host of the underground race.However, Charlemagne runs into friends and foes, and in his haste to recover the amulet, becomes reckless. The children assist Charlemagne to the best of their abilities, but great dangers lie in the desert, especially in the form of a terrible enemy - Islamic terrorists with a desire to destroy the amulet for all that it represents.Will Charlemagne be able to locate the amulet before the others or will the artefact fall into the hands of those that intend to sell or destroy it? What hidden secrets and great perils await for them in Egypt...?

When a meteorite crashes behind Charlemagne de la Cabernet's home, Charlemagne quickly collects it and begins to analyze the foreign material for its extraterrestrial qualities. Astounded by the material, others seek it from him - those that seek to recollect what was of the meteorite, and those that seek to collect what is of the meteorite. In addition, the children become involved in the conflict as Tristan is abducted and Diana assists Charlemagne in negotiating Tristan's return.However, an apocalyptic threat emerges out of the conflict between these three interest groups, and in an attempt to prevent an all-out war, Charlemagne, with the help of the children, work with the rebels of the two other groups to form a special task force to maintain the peace.Will peace be maintained or is war inevitable? What is the greater interest of the meteorite and where did it come from? What lies in the skies above...?

In the aftermath of the last adventure, Charlemagne hides from the watchful eyes of the government as he travels to the North Pole in search of another meteorite with extraterrestrial qualities. However, as he searches for this meteorite, he instead unearths more than he could imagine in the ancient, cold ice of the arctic.Meanwhile, Diana and Tristan, pressed on myths and reality as well as taken aback by Charlemagne's cutting them out of yet another adventure, stowaway on the Research Vessel Ingstad unbeknownst to Charlemagne so that they can come and see the wonder of the arctic for themselves.What awaits the three, hidden and forgotten within the ice of this uninhabitable frozen land? Are some things better kept under the ice? Will Diana and Tristan see what they expect to see, or could this just be their most dangerous adventure yet...?

In recognition for the tremendous humanitarian servitude of the Cabernet family, notably Derby Martel de la Cabernet, the French government has awarded Charlemagne de la Cabernet, and by extension, the Cabernet family with France's highest merit. Not soon after finding himself in the limelight of the press, the mainstream media turn on Charlemagne as he wanders into a Gilets Jaune protest in Paris, making populist remarks and showing his support for the protests against the French government, which the media come to interpret as 'racist' and claim that the Cabernet family is not even French at all in an attempt to delegitimize the family and their honor.Furious, Charlemagne, his girlfriend, and the children set off on a road trip across all of that composes the French realm, meeting with locals and seeing the beautiful countryside and many cities of France as he attempts to prove the media wrong. However, this good family vacation quickly turns deadly as 'accidents' begin to occur that are too coincidental to even be determined to be accidental, but appear to be the work of an assassin.Is it all a coincidence? Is there an assassin? Is the Cabernet family even French? Why would someone want to assassinate Charlemagne? Is it political or more...?

Diana Cambridge and Tristan Merrick are set to meet with Charlemagne de la Cabernet after not seeing him for two months since their adventure in France, and of all the locations in the world that they could meet, Charlemagne has decided to have their rendezvous at Northumbria-Berwick National Park on the British Isles. Incidentally, less than a day into their camping vacation, the family are forced to evict the forest due to the sudden rise of a deadly wildfire that has begun to spread from the north of the forest on the English-Scottish border.Between the insidious destructive power of the forest fire and the likewise destructive power of the mainstream media and their lackies that blame Cabernet Industries for the fire, Charlemagne attempts to set a good public image by volunteering to help defeat the flames with his private security detail. However, in the process, Tristan becomes separated from the group and instead meets up with a mysterious boy who Tristan remains with as they have an affinity to each other, especially as Tristan suspects there to be more to this boy than he lets on.Who is this boy? Is Cabernet Industries responsible for the fire? Is anyone responsible for the fire, or was this blaze simply the result of the path of nature...?

In the small town of Allabrese, all have come together to the Curtia Dawson Memorial Library where Charlemagne de la Cabernet is hosting a Halloween party to raise money to help keep Cabernet Technologies in business and give life to the brilliant innovations within. However, on this same night, Charlemagne is approached by a mysterious man who has confidential information and bears a warning to Charlemagne on a devastating technology in development by Zimmerman Corporation that could threaten his family and townsfolk.Several days later, a mysterious and widespread illness begins to infect the town, which inevitably results in a quarantine enforced by the national army. Suspicious and seeking to aid his townsfolk, Charlemagne investigates the illness that has plagued the town and entrapped his friends in a zone where he believes death awaits them, especially as he sees that this is no mere quarantine effort, but a military occupation with sinister purposes related to this secret, deadly technology. What has taken hold of the townspeople of Allabrese?What has caused this tragedy to overcome the beloved town of Allabrese? Is it within the townsfolk to allow themselves to be occupied, or will they find the will to rise up...?

In the aftermath of the last adventure, only Tristan Merrick is certain of what had occurred to be true, while Charlemagne de la Cabernet and Diana Cambridge are less certain. Nonetheless, in an effort to come to an understanding in what really happened last Halloween, Charlemagne and the kids attend psychotherapy sessions at the local hospital.However, when Tristan suddenly recalls a traumatic memory from his early childhood during one of these sessions, he quickly becomes obsessed as he starts to question his family origins and where he came from. This obsession takes him and Diana on their own adventure in the form of a road trip as Tristan pursues the truth in who he is and who his parents were, seeking to come home. Meanwhile, Charlemagne as well as other parties chase after Tristan as he recklessly abandons the safety of Allabrese to learn what he wants to know about himself.Who were Tristan's parents? Is this memory real, or a stain from the last adventure? To what extent will Tristan's emotions drive him in this obsessive journey sourced on a whim, and likewise, to what extent will Diana's emotions exhaust as she stays loyal to Tristan in this seemingly crazed state...?

In celebration of Diana Cambridge and Tristan Merrick's graduation from high school, Allodia de la Cabernet decides to take the couple, and her brother, Charlemagne de la Cabernet, to the utopian island of Isla Paraiso in the Caribbean to meet with the Cabernet parents, Everest and Vienna de la Cabernet, who are on a humanitarian mission to assist some displaced islanders.However, seeking to assist the islanders in his own manner, Charlemagne de la Cabernet focuses on assisting an islander child that has come down with a mysterious illness. Charlemagne's efforts soon find himself face-to-face with a mysterious Witch Doctor he believes to be responsible for the kidnapping of children on the island, or so it initially seems. Both Diana and Tristan assist Charlemagne in his endeavor to unmask the evil that lurks within this island paradise.Will Charlemagne and the couple be able to unmask the evil on the island? The Witch Doctor? Is this island truly a paradise, or a façade of one? Are the evildoers the only ones that are wearing masks...?

The end of summer is nigh and it is time for Diana Cambridge and Tristan Merrick to return from Isla Paraiso and come to their new home in the City of Harlech, where they are set to begin their first semester at university.However, this change of scenery, livelihood, and environment unsettles both Diana and Tristan, who grow distant from each other. The changes are most dire within Tristan whose unstable psyche grows increasingly to a tipping point as all that he thought he knew, hoped, and dreamed becomes fantasy, and the weight of responsibility and expectation become too much on him. These changes are more subtle for Diana, but she holds steady as she comes closer to her Christian faith, but even the sanctity of the Church is not free from the subversion of evil and she comes under as well.Will Diana and Tristan's relationship hold steady in the face of this inevitable storm, or is this the end of the couple? Can anyone save them, or were they doomed from the start? Will they be able to adapt to the changes and overcome the darkness ahead...?

Diana Cambridge and Tristan Merrick have set their lives at a change of course, but as the time ticks, Tristan's anxieties are mixed with uncertainty of the future ahead of him. When Charlemagne invites the couple to the manor, they announce the changes in their lives to a troubled Charlemagne who reveals the magnum opus of his innovations: a device he believes can take him into the future.However, the completion of this long-time project is not what troubles Charlemagne as the couple soon find out when their guardian quietly leaves them in order to correct the mistakes of his past, which has resulted in close friends of theirs, or family really, to have wandered into the time machine and become lost in a different world to their own. Diana and Tristan instantly go after Charlemagne, but only for themselves to become lost in a different world where they are forced to confront the issues at hand, which for Tristan, takes the form of confronting his own demons, himself, and then evil itself in order to become the man that he needs to be in order to save Diana, his family, and all those that he loves.

When Diana Cambridge and her mercenary unit within the Harlech Syndicate are betrayed in a top-secret mission within Harlech, Diana is the lone survivor who vows revenge against the conspirators that betrayed her comrades. In an effort to achieve her goal, Diana allies with Allodia de la Cabernet, and takes on a secret identity as a vigilante as she goes against the Neo-Harlech Syndicate that forms, and includes the Harlech Police Department and Mayor's Office.However, Tristan Merrick quickly realizes that the love of his life is this mysterious vigilante and becomes uncomfortable and fearful for Diana as she places herself in harm's way. Tristan allies with Charlemagne de la Cabernet and develop a mitigation strategy so that they can safely capture Diana before she can harm herself. Inevitably, Diana and Tristan land themselves in conflict with each other as one seeks to save the other, while the other seeks to save others from a dastardly plot left behind from an old enemy.Will Tristan be able to stop Diana? Will Diana avenge her fallen comrade? Who are these conspirators, and what is their plot that has Diana so invested in bringing them to justice...?

When Charlemagne de la Cabernet receives word that his adversary, Audric Zimmerman, is about to close in on the Scepter of Alexander the Great somewhere in East Asian, he is recruited to assist in its capture before him by international authorities. Despite the rise of the coronavirus pandemic, Charlemagne is given clearance to travel to Japan as a diplomat for the United Nations so that he can search for this final artefact.However, during an attempt to decrypt the location of the scepter, Diana Cambridge is kidnapped by a band of shadowy figures who take her to a remote village. There, the Japanese clan, who had mistaken her for foe, decide to train her in the ways of the female warrior so that she can defend herself and those she loves when the time comes. In this trial, Diana disciplines and trains in their old ways, but not without confronting her inner demon that lurks within and holds her back. Meanwhile, Tristan Merrick finds himself in a similar position, all while Charlemagne desperately finds the scepter, or more importantly, the orb of time, before Zimmerman.Will Diana be able to confront the demon that lurks within her? Will Charlemagne be able to find the orb of time before Zimmerman? What lies in store for Diana and Tristan in the arts that await to transform them, and who will they become afterwards? Will they ever be the same again...?