The Pirates of Bathtub Bay -- Tom Clark, Hardcover

It's bath time for Thomas when he summons his Pirate friends using his imagination to board the Old Wooden Walrus, searching for the "Golden Duck. He and his crew must be alert and not fall prey to "Bathtub Bay Falls", a treacherous cove where ships have gone to see Davy Jones Locker and a whole host of crazy creatures along the way. It's Thomas' last adventure as he's now getting old enough to take a shower but he leaves nothing at port, for this one promises to be his most imaginative and also the most fun yet. So climb aboard the Old Wooden Walrus with Thomas, keep peeking overboard helping him look for trouble and help him bring home the treasure.