This book just ate my dog! by Richard Byrne
My rating: 4 of 5 stars
Bella's dog disappears into the gutter of the book and only the reader can help!
While I am over the meta-book since a slew of them keep hitting the market and are just not up to the quality of Tap the Magic Tree, Press Here, The Monster at the End of this Book and The Three Pigs. But "This Book Just Ate My Dog" is clever in its use of the physical limitations of the book instead of just relying on the conventions of the reader.