Catching up with this series since the next volume after this has got a Hugo nomination. The 'crossover' of the title is between the Fables of the series (Snow White, Jack Horner, Bigby Wolf) and a new group of characters, the Literals, led by the powerful Kevin Thorne who can alter the world simply by writing it. The story was originally published as part of three different lines (Fables, Jack of Fables and The Literals) so this is one case where compiling the narrative within a single set of covers is definitely helpful to the reader. There are some good characters and some neat character moments, and I hope we will see more of the Page sisters in future volumes. But the core concept of a character whose power is so immense that he can destroy everything else is actually quite difficult to make interesting, and I kept thinking that Doctor Who did this better in The Mind Robber back in 1969.