An irresistible knights-and-dragons fantasy for the very young, in the tradition of Oxenbury's enduring classic We're Going on a Bear Hunt Jack, Zack, and baby Caspar spend all day fighting dragons in their homemade fort. But when Sir Zack and Caspar are taken inside for bed, King Jack - alone on his throne - finds himself feeling a bit less brave . . . especially when he hears a thing approaching, a thing with four legs. A rollicking read-aloud with a charming surprise ending and Helen Oxenbury's spare, expressive illustrations, this kid-pleaser is a classic in the making.