Maelstrom: Book Two of The Twins of Petaybee
Deluge: Book Three of The Twins of Petaybee
Power Play (Petaybee Trilogy)
Power Lines (Petaybee Trilogy)
Powers That Be (Petaybee Trilogy)
The Ship Who Saved the Worlds (Brain and Brawn Ship Series combo volumes Book 2)
Freedom's Ransom (A Freedom Novel Book 4)
Freedom's Challenge (A Freedom Novel Book 3)
Pegasus in Space (The Talents Saga Book 3)
Brain Ships (Brain and Brawn Ship Series Book 3)