- The mansion in the mist, John Bellairs ; frontispiece by Edward Gorey
- The mummy, the will, and the crypt, John Bellairs ; frontispiece and maps by Edward Gorey. --
- The vengeance of the witch-finder, John Bellairs ; completed by Brad Strickland ; frontispiece by Edward Gorey
- The spell of the sorcerer's skull, by John Bellairs. --
- The lamp from the warlock's tomb, John Bellairs ; frontispiece by Edward Gorey
- 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
- Secret of the underground room, by John Bellairs ; jacket and frontispiece by Edward Gorey