Children everywhere are disappearing.

Orphan, Chess Tuesday, and her brothers, Box and Splinter, don't want to be next. But they are being tracked by two powerful enemy organizations, each intent on destroying the other . . .

Who is good and who is evil?
Why do both sides need the Tuesdays?
And can anyone escape the hunters?

Chess, Box and Splinter are about to embark on a terrifying mission to find out.