I have co-written several anthologies of stories with other crime writers including Mike Jecks, Susanna Gregory, Bernard Knight, Karen Maitland and Philip Gooden.  They are all written under the name of the Medieval Murderers.  There are ten books.

The Tainted Relic

The Sword of Shame

The House of Shadows

The Lost Prophecies

King Arthur's Bones

The Sacred Stone

The Hill of Bones

The First Murder

The False Virgin

The Deadliest Sin

My stories include several of my favourite characters - William Falconer, Nick Zuliani, and the Georgian pair Joe Malinferno and Doll Pocket.  Check them out on Amazon.