- The ghost in the mirror, John Bellairs ; completed by Brad Strickland
- The letter, the witch, and the ring, John Bellairs ; drawings by Richard Egielski. --
- The trolley to yesterday, John Bellairs ; frontispiece and map by Edward Gorey
- The treasure of Alpheus Winterborn, John Bellairs ; illustrated by Judith Gwyn Brown
- The mansion in the mist, John Bellairs ; frontispiece by Edward Gorey
- The letter, the witch, and the ring, by John Bellairs ; drawings by Richard Egielski
- The house with a clock in its walls, John Bellairs ; pictures by Edward Gorey
- The curse of the blue figurine, John Bellairs
- The spell of the sorcerer's skull, by John Bellairs. --
- The revenge of the wizard's ghost, John Bellairs ; frontispiece and map by Edward Gorey. --
- The figure in the shadows, John Bellairs ; drawings by Mercer Mayer
- The doom of the haunted opera, John Bellairs ; completed by Brad Strickland ; frontispiece by Edward Gorey
- The chessmen of doom, by John Bellairs ; jacket and frontispiece by Edward Gorey
- The eyes of the killer robot, John Bellairs ; frontispiece by Edward Gorey