From the introduction: Gen Con So. Cal. 2003 Version ... Under High Lord's Hall is a delve-style special event for the Legacy of the Green Regent campaign. In this event the PCs explore the crypts under Loudwater's High Lord's Hall in the search for the High Lord of Loudwater's missing son. ... This is actually two adventures that each end in a single fight to free Velvred. Since both of the crypts were unsealed, Kalahar Twohands has thought it prudent to send two different groups of adventurers. Each of the crypts has it own dangers.