Mercury (The Grand Tour Book 14)
Mars Life (The Grand Tour Book 17)
Venus (The Grand Tour Book 6)
Jupiter: A Novel (The Grand Tour Book 7)
Saturn: A Novel of the Ringed Planet (The Grand Tour Book 10)
New Earth (The Grand Tour Book 21)
Return to Mars (The Grand Tour Book 7)
Farside (The Grand Tour Book 20)
Mars (The Grand Tour Book 4)
Apes and Angels (The Grand Tour Book 23)