Cleric Boyden is a cleric of the Soverieign Host, and serves at the Cathedral of the Soverign Host in Korth. He is known for his jovial and upbeat personality--which is a contrast to the typical people in similar positions--his love of drink, and his ferocity in battle. His latest whereabouts are in Symbaroum, working for The Returners, under the guise of a theurg for the Church of Prios.
In KA01. Bound, Gagged, and Blindfolded, Coyle attempted to blackmail the party into assassination Boyden and stealing scriptures from him.
In KA02. The Tower of the Twelve, at request of General Yorin Thaurum, the party joined Boyden in a quest to expel the undead that had taken over the Tower of the Twelve.
Following this, Boyden made the connection between Erandis Vol and the Queen of Death, uncovering her plans to merge Eberron with Dolurrh, and to recreat the Mark of Death on a living being.
In SY08. Are you Afraid of the Dark?, the party journeyed with Boyden--now a Returner in Symbaroum--on a quest to defeat the Creeping Darkness.