Title: The Obsidian Dagger: Being the Further Extraordinary Adventures of Horatio Lyle: Number 2 in series, Author: Catherine Webb
Title: The Extraordinary & Unusual Adventures of Horatio Lyle: Number 1 in series, Author: Catherine Webb
Title: The Doomsday Machine: Another Astounding Adventure of Horatio Lyle: Number 3 in series, Author: Catherine Webb
Title: Timekeepers: Number 2 in series, Author: Catherine Webb
Title: Waywalkers: Number 1 in series, Author: Catherine Webb