A mysterious hum in the middle of the night jolts Reksio, Kretes, and the Rooster Inventor out of bed. Without hesitation and despite the danger, the friends set out to investigate. Soon, they discover that a massive Black Monolith has appeared in a forest clearing. Kretes touches its surface — and in an instant, all three heroes are pulled into the depths of the third dimension. Someone has kidnapped the friends and left them stranded at the foot of the Dark Tower. Someone has torn them from the safety of their flat, 2D world and cast them into a hostile, three-dimensional space. Someone has built 54 labyrinths to put their friendship to the ultimate test. Someone ruthless. Someone... familiar.