The Golden Phoenix

Addric's first visit to Planet Earth was supposed to be a holiday, but it turns into a race against time to rescue his brother's girlfriend from the clutches of a necromancer with delusions of grandeur.
A vacation in the countryside this is not, especially when you have no idea what you are up against.
Accompanied by a few feisty friends, Addric embarks on a mission to rescue his brother's girlfriend from the clutches of a necromancer with delusions of grandeur.
To save Elisabeth, they have to battle it out in the Roman arena, cross the Arctic Ocean on a crystal powered boat, venture deep into the bowels of the Earth, and then brave the fires of hell on a volcanic planet on the verge of a major transformation. It will take something more than sharp claws and attitude to defeat a Necromancer at his own game, but these boys are Yumi Masters and they have a few tricks up their sleeve.