Double Mirrors

Jasper attended the 12th anniversary of Leyden, the town where he grew up.
At the celebration, he encountered his niece Elsbeth.
Elsbeth and her friends invited him to join them on their trip to an abandoned British mansion nearby.
The residents disappeared twenty-five years ago.
Despite hesitation, Jasper joined his niece on her little adventure... something he would regret sooner than later...