These stories were one of the inspirations for the Cthulhu Invictus campaign for the Call of Cthulhu role-playing game by Chaosium. Enjoy sixteen stories combining superbly researched historical fiction with sword & sorcery and Lovecraftian horror.
This is a long-running series of stories (begun in the mid-1980s) by Tierney features Simon of Gitta, an escaped slave turned magician, roves the Roman Empire battling dark magic and demons, all the while pursued by Caesar’s soldiers.
Join Simon as he flees across the ancient world evading cultists and Legionaries, outwitting sorcerers and Centurions, and fighting gladiators and gods, even the deities of the Cthulhu Mythos. Yet all these foes cannot prepare him for his greatest challenge: the pursuit of his lost soul-mate Helen, a love so deep even death can’t stand in its way for long.
There is also a novel : The Drums of Chaos