Book picks similar to
Who Stole the Wizard of Oz? by Avi


mystery
childrens
middle-grade
children-s

The Secret Seven


Enid Blyton - 1949
    It's snowing and the Seven are dressed in disguise, following a lead to a spooky old house - and a mystery.

The Indian in the Cupboard


Lynne Reid Banks - 1980
    But when he puts it in his old cupboard and turns the key, something extraordinary happens that will change Omri's life for ever. For Little Bear, the Iroquois Indian brave, comes to life...

Wait Till Helen Comes


Mary Downing Hahn - 1986
    Heather is such a whiny little brat. Always getting Michael and me into trouble. But since our mother married her father, we're stuck with her ... our "poor stepsister" who lost her real mother in a mysterious fire. But now something terrible has happened. Heather has found a new friend, out in the graveyard behind our home—a girl named Helen who died with her family in a mysterious fire over a hundred years ago. Now her ghost returns to lure children into the pond ... to drown! I don't want to believe in ghosts, but I've followed Heather into the graveyard and watch her talk to Helen. And I'm terrified. Not for myself, but for Heather...