Lover's Quarrel

From the introduction: Adventure for 4 3rd Level Characters ... Princess Gwenhwyvar has been missing for years, and King Gogyrfan is a broken man who has almost given up hope. Word is received from a mysterious source that the Princess has been found, captured by an evil Lich and held on a haunted isle. Without another thought, Gogyrfan and his daughter Princess Gwyneira call the banners and set out to save her. The PCs are brought along as they are known to the king as the best warriors in his kingdom as well as wise councillors. They sale with an army of one thousand men across the cold sea to the haunted isle, ready to prise Gwenhwyvar from the monster's clutches.