From the introduction: In the Milandisian capital city of Naeraanth, the nephew of a Duke has been accused of a vile crime - murder. The Duke believes his nephew to be innocent, but the young Knight refuses to speak to anyone about the night in question. What secret is dangerous enough that an honorable man would hang for a crime he did not commit? Can your group of investigators unwind the thread of evil machinations quickly enough to discover the grisly truth that lies buried in a Castle by the Sea? User summary: For 1st - 16th level characters.