Linley is a police officer under the command of Inspector Williams.
They were present at the British Museum in London when the Rosetta Stone exploded. She locked Sadie in Sadie's room. Despite Sadie's complaints that she couldn't use the bathroom Linley kept her there until Williams talked with her. Then Linley guarded the door at the family meeting with a police officer who kept eyeing Mrs. Faust's biscuits. Amos Kane came in the house a hypnotized Williams to not arrest the Kane children. Linley questioned William's actions. He ordered her out of the building.