• The Hermitage: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 9)
• Cuthbert's Way: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 17)
• Cragside: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 6)
• The Infirmary: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 11)
• Hysteria: An Alexander Gregory Thriller (The Alexander Gregory Thrillers Book 2)
• The Rock: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 18)
• The Shrine: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 16)
• Borderlands: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 14)
• Dark Skies: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 7)
• High Force: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 5)
• Penshaw: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 13)
• Impostor
• Seven Bridges
• Longstone: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 10)
• Sycamore Gap: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 2)
• Holy Island: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 1)
• Angel: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 4)
• Heavenfield: A DCI Ryan Mystery (The DCI Ryan Mysteries Book 3)