Keep of the Witch

With the youngest Princess kidnapped, you play as 1 of her 4 saviors; the First Princess, the Knight, the Adventurer, or the Witch, to ascend a castle and defeat what lies in your way. Adventure through the keep, with its empty halls, inconveniently questionable rooms filled with puzzles, and the occasional painting frames of long past residence. Keep of the Witch; as the name states, the true villain, the Witch took the 2nd princess and caused all this trouble. But who is the Witch? The final boss? Is it you?