In the volatile landscape of post-World War I Palestine, British intelligence officer James "Jimgrim" Grim is tasked with uncovering the truth behind the "Iblis," a legendary relic believed to hold immense power. As conflicting factions-including Arab revolutionaries, British officials, and secretive cults-vie for control, Jimgrim and his allies must navigate a treacherous world of espionage, deception, and shifting allegiances. With history and myth colliding, the fate of the region may rest in their hands.