"Sendak is the daddy of them all when it comes to picture books - the words, the rhythm and the design are all wonderful." -- S Magazine Sunday Express "If there is more to life than having everything, there, is also more to life than having nothing; Jennie's farewell letter to her old master is written from Castle Yonder. In synopsis, this sounds both more and less ambiguous than it is -- you can't compress the reverberations into a review, and certainly not the ominous illustrations; it may by-pass some adults because Sendak speaks directly to the elastic imagination of children." Kirkus reviews