Editions of The Valley of Fear

English language

Published Feb. 13, 1970 by Berkley Medallion.

audio cassette

Published Nov. 13, 1987 by Recorded Books.

109 pages

English language

Published Feb. 13, 2020 by Independently Published.

213 pages

English language

Published Feb. 13, 2020 by Independently Published.

213 pages

English language

Published Feb. 13, 2020 by Independently Published.

171 pages

Catalan language

Published Feb. 13, 1986 by Laertes S.A. De Ediciones.