This is a story of things that are not possible.
It's not possible for Amy to see spirits. (She does.)
It's not possible that Amy and Moo can communicate using only their minds. (They do.)
It's not possible to time-travel. (Yet.)
And it's definitely not possible that witches exist. (Seriously?)
None of these things are possible. (Until now . . .)
"With its hodgepodge of science, magic, lightweight natural philosophy, self-aware humor, and language play, this novel offers some quirky and amusing science fantasy." --Bulletin