Clearly I'm 30 years (and then some) too old for this, but it had some good things going for it.
The main characters are two children, Abby and Spike. They are both likeable, dynamic little things, and the fact that they are both involved in the action makes this a good book for youngsters. Spike is the one who worries about Abby, Abby, though, volunteers for the dangerous stunts and carries them out.

There were a few continuity errors, like Captain Starlight looking at a map when last we knew he was blindfolded with his arms tied to his sides being just one. But that would be quibbling over smaller issues. I don't enjoy magic or books that rely on magic to resolve things, I'm far too practical to find that appealing. And it annoyed me in this book too, but the characters were good, the adventure had some challenges, needed some thinking and some brawn, there was trepidation and violence did not always win the day. The adults couldn't succeed without the children, and everyone learns something. A little bit good triumphs over evil, but the leader of the dark side gets away, so there remains that threat of future peril (always a bonus).
Not my thing, but surprisingly enjoyable. ( )

Abby and her best friend Spike, a foundling, live in an ordinary seaside town, or so they think. They learn that nearly everyone they know are light witches, and together they are dragged into a battle against the dark witches, in a struggle for ice dust, the source of all magical power, and along the way, discover who Spike really is. This is a great start of a great trilogy. ( )