He will say that Henryeta and he are growing older and need an heir, but their son Philipe is rather snobbish and not much of an adventurer. Hence you are needed to create a quest for him to complete, using only materials from the house. The quest is to be set in the Carnillean Sewers under the mansion. He will hand you a list containing a number of tasks to do. Do not forget to ask where you can get the stuff from, otherwise you will not be able to continue. After you have spoken to Ceril you need to talk to Butler Crichton, Butler Jones's replacement, who will tell you to search a bookcase for a book about the Carnillean family. It is located in the room with Henryeta Carnillean. Then go into the basement, and into the cave near the ladder.