The fourth novel in the series about Gareth Prior and his team of detectives takes us to Cardiff and the MI5 headquarters in London following the disappearance of Sir Gerald from his boat in Cardigan Bay.

• Pennod 1
• Pennod 2
• Pennod 3
• Pennod 4
• Pennod 5
• Pennod 6
• Pennod 7
• Pennod 8
• Pennod 9
• Pennod 10
• Pennod 11
• Pennod 12
• Pennod 13
• Pennod 14
• Pennod 15
• Pennod 16
• Pennod 17
• Pennod 18
• Pennod 19
• Pennod 20
• Pennod 21
• Pennod 22
• Pennod 23
• Pennod 24
• Pennod 25
• Pennod 26
• Nodyn gan yr Awdur