The Shallow Ones deck is a creation of comic artist John Kovalic, and it contains adorable little Cthulhus and other monsters. Behold the deck in all its immeasurable cuteness!
Game Rules: The back page of every Pairs rulebook will be different, with details on a variant that's exclusive to that deck. (The front page always has the basic rules.) The Shallow Ones deck contains the rules to a casino-style version of Pairs, called Monster.