Ace Jessel is a character created by Robert E. Howard. He appeared in the short stories The Apparition in the Prize Ring (first published in the April 1929 issue of Ghost Stories) and Double-Cross (first in the 1983 collection Bran Mak Morn: A Play and Others).

Crossover chronologyEdit

Story Publication Crossovers
1930 - The Tournament of the Treasure Tales of the Shadowmen, Volume 9: La Vie en Noir, 2012 see Steve Costigan
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