John Bellairs wrote 17 books published between 1966 and his death in 1991, with one published posthumously in 1992. Four additional books were attributed to Bellairs but as being completed by Brad Strickland. Two additional stories have been released: The Dolphin Cross in 2009, the unfinished sequel to The Face in the Frost; and The Gargoyle in the Dump, in 2015.