When the storm traps nobles, priests, and scholars inside Caerthwyn Keep, the unveiling of the fabled Sapphire Chalice is meant to inspire unity. Instead, the relic vanishes—only to be found again, hidden and corrupted by strange magic. Enter Nerissa, a quiet investigator whose talent for reading mortal motives cuts sharper than any blade. As the storm howls outside, she must sift through a gallery of suspects: the haughty priestess with secrets in her prayers, the brash knight eager to guard what is not his, the playwright who knows too much, and the trembling maid who may have seen more than she dares admit. With each revelation, suspicion shifts like the wind, until every guest stands accused in turn. Only at the final moment does the truth surface—simple, human, and devastating. In this classic fantasy mystery of shifting guilt and quiet observation, Nerissa proves that the most dangerous deceptions lie not in sorcery, but in the hearts of those who think themselves beyond suspicion.