CARL AND HIS EX-GIRLFRIEND'S CAT, PRINCESS DONUT, HAVE TO TEAM UP WITH OTHER CONTESTANTS NOT JUST TO SURVIVE BUT TO SOLVE A DEADLY PUZZLE, THE THIRD MIND-TWISTING NOVEL IN THE NEW YORK'S BESTSELLING DUNGEON CRAWLER CARL SERIES BY MATT DINNIMAN-NOW WITH BONUS MATERIAL EXCLUSIVE TO THIS PRINT EDITION. 

Earth has been transformed into the set of the galaxy's most watched game show: Dungeon Crawler World, a nightmarish, multilevel, video game-like dungeon filled with traps, monsters, and brain-melting puzzles. Carl and Donut have survived so far, but this fourth level is unlike any-shing they could imagine. The Iron Tangle: an mpossibly complicated subway system tied together into a knot of trains of all kinds, from classic steam engines to sleek modern cars. Up is down. Down is up. Close is far. The cars are filled with monsters, the railway stations aren't always what they seem, and the exit is perpetually just a few stops away.

The top-ten list is populated, and Carl and Donut have made it. But that popularity comes with a price. They each now have a bounty on their head. They must work with other crawlers to solve the puzzle of the floor, but how can they do hat when they don't know whom to trust? The secret. to unraveling it all may be hidden in the ages of a seemingly useless book.

WELCOME, CRAWLERS.WELCOME TO THE FOURTH FLOOR OF THE DUNGEON