Deep down under the sea live Merbaby and Merdaddy. They talk to the fish, have seaweed picnics, float with the jellyfish, hide with the otters, surf with the turtles, and save any hapless sailors who need help.

The water is the best place Merbaby can imagine being . . . until Merdaddy says their fingers look like raisins and their teeth are chattering.