After dealing with the skeletal guardians, the next room only holds a single sarcaphagus. The trio waits a moment, but nothing happens. They cautiously approach – still nothing happens. It is not until they open it (well, Morgurn and Bjorn open it) that a skeletal knight appears. He carries a large hammer – it is the ghost of Sir Keegan, the former castle lord.
He explained his sad story and how he can never be forgiven. He beseeches the party to help – upon their agreement, he bequeaths his hammer Aecris to them.