GM   Cerys Pfer stood before the sweating stone castle that had dominated her life before Claremont. The headquarters of Amddiffynnwr O Lleu Llaw Gyffes was still imposing, and now Cerys found herself called back here because because because she had received a letter from the head of the order. It had been full of code words and phrases, designed to defeat detection by whoever might read it besides Cerys, which really meant Headmaster Summers. The letter had talked about Cerys's 'sick cou