Martin Stewart Books in Order

Wulliam dreads inheriting his father’s duties tending the river and recovering its dead. When a dark spirit possesses his father, he journeys downstream in search of a cure rumored to lie inside a legendary sea creature.

Five friends place treasured objects in a mysterious box and promise to obey three rules. Four years later, disturbing events suggest someone has broken the pact, and the friends must face the terrifying consequences of their childhood ritual.

Evacuated during wartime, Lukas is asked to feed the faeries at his new home. When he breaks that promise and discovers the creatures are real, he and his new friends must fortify the house against supernatural revenge.

Journalist Robbie Gould reluctantly investigates a missing lecturer while a second academic’s body is found in a suitcase. Joining a pathologist whose report was censored, he uncovers links to rival gangsters, stolen Kremlin diamonds, and a trail of old espionage.