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FD67BFC3-2779-4739-B540-AD26D9AA1E16 This article is a stub and would benefit greatly if it contained more information. Please help the Captain Underpants Wiki by expanding it.

The Tra-La-Laa-Mendous Captain Underpants Collection is a collection book by Dav Pilkey. It contains the first three books, Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy - Part 2: The Revenge of the Ridiculous Robo-Boogers, Captain Underpants and the Preposterous Plight of the Purple Potty People and an inflatable Captain Underpants. It also has a glow-in-the-dark cover.

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