On their return home from their pilgrimage, Baldwin and Simon's ship is attacked off the coast of the Scilly Isles by pirates and Simon looks on in horror as Baldwin is swept overboard. Washed ashore on the tiny island of Ennor, Simon is distraught to think that his closest friend is dead, but he has to put aside his grief when the master of the castle orders him to investigate a murder. Meanwhile, Baldwin himself has been washed up on St Nicholas and is nursed back to health by the beautiful Tedia. He uncovers a different picture of the island as he too begins to investigate the murder. Can Baldwin and Simon's parallel investigations uncover the truth?