The Shadow Brothers of Doom & Three (2015) Paperback Book #93

Searing detective stories and features "Brothers of Doom" -- The Knight of Darkness challenges an evil foursome who have made a deadly compact as Brothers of Doom. "The Three Brothers" -- The Shadow investigates The Three Brothers to determine which is the evil mastermind behind enigmatic murders! Plus, "Iron Munro, The Astounding Man" by Otto and Jack Binder with E.C. Stoner First published in 1937.