It's always the creepy little kids
"Get me the sugar!" called Jack's wife. His heart skipped a beat as he stood before the cabinet. Holding his breath, he slowly opened it.... Dangit! A baby!
God has been slayed by a mortal man and his head is now worshipped and put on a pedestal. The PCs are hired to steal the head and bring it to a mystic that claims to have the power to revive God.