|Aliases||The Mosswater Marauder|
|Homeland||Mosswater, River Kingdoms then Ravengro, Ustalav|
Source: The Haunting of Harrowstone, pg(s). 17
Ispin Onyxcudgel, known as The Mosswater Marauder, was a notorious serial killer who was incarcerated in Harrowstone prison near Ravengro, in Canterwall county, Ustalav, where he died in a great fire in 4661 AR.
Ispin had lived with his wife in Mosswater, a town in the north-western River Kingdoms very close to the border with Ustalav. His murdering spree started as a crime of passion when he murdered his unfaithful wife, whom he had dearly loved, using his hammer to smash her skull. This act sent him mad: he thought that by repairing his wife's skull she would be resurrected which would assuage his guilt. Unfortunately, Ispin could not fully repair the skull—there was a sliver of her skull missing. To find such a sliver to complete the repair, Ispin became the Mosswater Marauder and battered nearly twenty people to death over a few weeks but never found the piece for which he searched. He was eventually caught in the act as he nearly murdered a nobleman's daughter; he was sent directly to Harrowstone the very same night.