The Silver Tower

Publisher's blurb: On the edge of the realm, on the borders where wars are fought and heroes and villains die, there stands this ancient tower, a stronghold feared by Warlords and Kings alike. Though the castle rests upon a secure mountaintop, easily commanding the lands around it, no army will dare go there to claim it. They do not wish to be claimed by the tower. Annually is treasure taken there as tributary to its other-worldly powers. Yet if you could defy those spirits, if you would dare to be the first in centuries to enter the tower, what untold riches would await you?