Time Machines: Scientific Explorations in Deep Time

Power from the Earth: Deep Earth Gas, Energy for the Future

Melissa Etheridge: Our Little Secret

Come Retribution: The Confederate Secret Service and the Assassination of Lincoln

On South Mountain : The Dark Secrets of the Goler Clan

The Secret Cases of Sherlock Holmes

Waist Deep in Montana's Lakes

Three Complete Novels: A Night of Gaiety/a Duke in Danger/Secret Harbor

Secret Agenda: Watergate, Deep Throat, and the CIA

Secrets from a Stargazer's Notebook: Making Astrology Work for You