Wolf in Shadow (Jon Shannow, #1)

Wolf in Shadow (first published in the United States as The Jerusalem Man) is a 1987 post-apocalyptic heroic fantasy novel by British author David Andrew Gemmell. It is similar to Gemmell's first book Legend in that Legend arose from Gemmell's own illness with cancer, and Wolf in Shadow was written while he dealt with his mother's cancer and subsequent death.