Amnesiac Adventurer

Greetings! Our brave adventurer has finally arrived at the Dungeon of Doubt, ready to see what treasures and dangers await! After taking his first few steps, he suddenly finds himself standing at the 13th floor of the dungeon! Wait, what just happened? Our adventurer has vague memories of going through the previous floors, but he can't remember how, exactly. Help our forgetful friend figure out ho…