Legion from the Shadows (1976) by Karl Edward Wagner
One of Robert E. Howard’s finest short stories is Worms of the Earth , first published in 1932, a pitch-black, horror-tinged piece of sword and sorcery pulp that features a very different protagonist from his famed Cimmerian, Conan. The tale revolves around the diminutive but powerful Pict King, Bran Mak Morn, and details his willingness to dabble with dark supernatural forces in summoning a race of degenerate subhuman underground creatures to achieve revenge against a Roman governor for the crucifixion of one of his comrades. The task that stalwart dark fantasy author Karl Edward Wagner takes on in Legion from the Shadows is to give readers a direct novel-length sequel to Howard’s story, once again focusing on Bran Mak Morn and his ongoing war against Rome in ancient Britain. Wagner’s scope is impressive as he casts his net large enough to incorporate the mystery of the legendary missing IX Le...