Highbrow Englishman, Lord Brett Sinclair and Bronx-born American fortune seeker, Danny Wilde seem an unlikely pair, but their friendship propels them on some wild and wacky adventures in Robert S. Baker's London Conspiracy. Lord Sinclair discovers that a vacant mansion that he inherited has been occupied by a mysterious organization. He and Danny decide to enter the mansion incognito to find out what the group are doing. They discover that Melanie, a member of the subversive organization, is trying to kidnap a visting diplomat. Together, Danny and Brett foil the hostage-takers plans, reclaim the mansion and emerge unscathed. Later, Danny purchases a rundown cottage that he plans to renovate with Brett's help. Instead of countryside tranquility, he finds a gun-toting bird watcher, a body in the well and evidence of black magic at work in the cottage. Soon Brett and Danny realize they've stumbled on something more than your ordinary mystery.