volumes : 26 cm When a mysterious pool suddenly appears on the hottest day of the summer, Mordecai and Rigby think it will be the perfect way to beat the heat, until a giant snake monster puts them both in major trouble Volume 1: created by JG Quintel ; written by KC Green ; art by Allison Strejlau ; colors by Lisa Moore ; letters by Steve Wands. Originally published in single magazine form as Regular show 1-2, 4-5 Volume 6: script by Mad Rupert