A Ghost Squad book

The crime-fighting Ghost Squad joins forces with living colleagues to find out the fate of a missing boy at a camp which seems to be headed by a former commandant of a Nazi death camp.

The Ghost Squad's attempts to solve the mystery of one murder--and prevent another--are complicated by the activities of the evil Malevs.

Four young ghosts who have banded together to prevent crimes fly to England to investigate a swindler.

The members of the Ghost Squad determine to keep the evil Dr. Purcell from succeeding in his plan to have his ghostly accomplices take over the temporarily vacated bodies of living beings.

When one of them finds a successful way to communicate with a live person, four young ghost decide to band together to help solve and prevent crimes.

Four young ghosts uncover a plot by a senator's stepson to have his stepfather unwittingly pass out candy embedded with needles at a Halloween party.