Hello everybody out there in the whirly old world. It’s me Henrietta. There’s something going on, and it isn’t even Christmas. It’s a DILEMMA. The Rietta is sad because it’s lost. And we absolutely have to find the Rietta a home because the sadder the Rietta becomes the more its spots fade.

At bathtime, the very imaginative Henrietta sails away to do some serious explorification along with her friends Olive Higgie, Albert, and the Rietta--which Henrietta explains is "a particular kind of creature who helps you clown around." They head for the Wide Wide Long Cool Coast of the Lost Socks, having heard that there just might be a small colony of Riettas living there. They talk to the lost socks and have no choice but to trust a tennis sock, and their journey becomes more frightening from there. Will Henrietta make it to her destination? Will she find a new home for the fading Rietta? Will she find Olive Higgie and Albert again?