Margaret Peterson Haddix

Running Out of Time

The Secret Letters (Mysteries of Trash and Treasure #1)

The Strangers (Greystone Secrets #1)

Children of Exile (Children of Exile #1)

Falling Out of Time (Running out of Time #2)

The Ghostly Photos (Mysteries of Trash and Treasure #2)

The Deceivers (Greystone Secrets #2)

Children of Refuge (Children of Exile #2)

The Stolen Key (Mysteries of Trash and Treasure #3)

The Messengers (Greystone Secrets #3)

Children of Jubilee (Children of Exile #3)

Palace of Lies

The School for Whatnots