A Bretonnian man-at-arms who served as a temporary squire to knight from Couronne Sir Dior Bontoux during the great war against chaos known as the Storm of Chaos. After Sir Bontoux died during the siege of Middenheim Mercer joined the cult of Ulric and became a hired sword. He was employed by the Wolf Runners Coach (a middenheimer coach firm) to sequere their way to Marienburg through the wilderness.

After encountering Mercer at the fare Sir Jacen managed to convince the mercenary join the group as a henceman.

A Former member of Captain Valentin's crew on Dove Cheveaux. Was abducted by the pirates when they attacked the party at the Sea of Claws. Seiger was found prisoned in the caves of the cult of Stormfels and he agreeded to follow the party on the riverboat as they begin their journey to Nuln.

Seiger is something of spiritual fellow as he has an hoard of religious stories about the seas and rivers of Old World.