A typographical error (often shortened to typo), is a mistake made in the typing process (such as a spelling mistake) or in printed material. Over the years a few have popped up in the Bellairs Corpus.
- Page 25: The Litany of Saint Fidgeta includes two verses whose opening lines are reversed.
- The preview page of the 1985 Bantam paperback edition begins, "Johnny read the strange message he discovered...." even though the book is the first in the Anthony Monday series.
- Reverse cover (1985 Dial edition): The phrase "Zebulon Patriarcha" as described in the book (page 4) appears on the cover as “Zarulon Patriarcha". Edward Gorey later corrected the misspelling.
- Page 56: "...then we are going to pretend to be tourists and prive out out past the place...."
- Page 69: "It may not be possible for anyon to destroy the Logos Cube...."
- Page 46: “...the magicians had scrambled up out of the orchestra pit and dashed out past Lewis and Rose Rita.”
- Page 26: "Not his English pen pal, Bertie Woodring,...."
- Page 32: "That's the kind Gert Biggers wanted to be...."