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Bobo (accidentally!) risks getting lost at sea in this irresistible adventure starring everyone’s favorite frenemies.

Willie and Bobo are exploring. And just look at all they’ve found! There are spectacular sticks and teeny tiny non-bitey roly-poly bugs. And this—a red bucket! Why, that would make the perfect boat for Bobo. But while Willie is marveling over the prospects of Bobo as sailor man, the boat—and Bobo!—start to drift away. Far away! Is there anything Willie can do to save his best bud? Perhaps a certain cat can help…

Photograph courtesy of Eileen Rosenthal

Eileen Rosenthal and her husband, Marc Rosenthal, enjoy working together (and even sharing)—unlike Willy and Earl. I Must Have Bobo! was their first collaborative project and Eileen’s picture book debut. Marc is also the illustrator of Alison McGhee’s Making a Friend. Eileen and Marc live with their family in the Berkshires.

Photograph courtesy of Marc Rosenthal

Marc Rosenthal is the New York Times bestselling illustrator of many books for children, including Small Walt by Elizabeth Verdick; the Bobo series by Eileen Rosenthal; The Straight Line Wonder by Mem Fox; and Phooey!, which he wrote. Marc’s illustrations can be seen regularly in The New YorkerTimeForbesFortuneThe AtlanticThe New York TimesThe Boston Globe, The Washington Post, and others. Visit him online at Marc-Rosenthal.com.

More books from this author: Eileen Rosenthal

More books from this illustrator: Marc Rosenthal