As a boy Howard Pease was one of my favorite authors. Most of his books are set on ships at sea. Mystery at Thunderbolt House is one of his few books with a land setting. The time is 1905 and 1906 and the place is San Francisco. The Allen family who live in Stockton CA have just inherited a mansion in San Francisco. Mysteries revolve around the questionable past of Mrs. Allen's uncle Edward Judson who left his house and contents to her. The protagonist Judson Allen, 17, inherits Uncle Edward's collection of valuable books. Why do books keep disappearing from the mansion's library and what was Uncle Edward's involvement with the Vigilantes. ( )