The Outsiders Gambit: A Historic Crimes Crossover

The Antarctic Forgery: A Dan Kotler Archaeological Thriller

The Coelho Medallion: A Dan Kotler Archeological Thriller

The God Extinction: A Dan Kotler Archaeological Thriller

The Girl in the Mayan Tomb: A Dan Kotler Archaeological Thriller

The Demon Core: A Dan Kotler Archaeological Thriller

The Devil's Interval: A Dan Kotler Archaeological Thriller

The Stepping Maze: A Dan Kotler Archaeological Thriller

The Atlantis Riddle: A Dan Kotler Archaeological Thriller

The Spanish Papers: A Dan Kotler Archaeological Thriller

The Hidden Persuaders: A Dan Kotler Archaeological Thriller

The Sleeper's War: A Dan Kotler Archaeological Thriller

The God Resurrection: A Dan Kotler Archaeological Thriller

The Man Below: An Historic Crimes Crossover

Citadel: First Colony

Citadel: Paths in Darkness