Callisto Books in Order

Princess Darloona is captured by the Black Legion occupying Shondakar and threatened with a political marriage. Earthman Jandar infiltrates the enemy-held city, seeking a way to rescue her and help her displaced people recover their home.

Helicopter pilot Jonathan Dark is stranded in Cambodia and discovers a strange well among ancient ruins. Transported to inhabited Callisto, he enters a world of hostile creatures, warring peoples, and a princess whose troubles become his own.

With Shondakar freed but Darloona abducted by a fleeing sky-pirate prince, Jandar launches another rescue. A captured airship carries him toward the enemy city, where its aerial strength and dangerous defenses threaten both the mission and Callisto's peace.

Settled on Callisto with Darloona, Jandar is kidnapped during a hunting excursion by agents of a rival city. Empress Zamorra's ambitions and her mind-wizard adviser draw him into a struggle extending beyond escape from her dungeons.

Accidentally transported to Callisto, author Lin Carter becomes Lankar and joins an expedition searching for the missing Jandar. His knowledge of the planet offers little protection against the flesh robots and Mind Wizards awaiting the rescuers in Kuur.

Jandar leads an aerial expedition into the unexplored side of Callisto to find the Mind Wizards of Kuur. An attack by flying Zarkoons leaves him and young Tomar captive, beginning a struggle through unfamiliar dangers and shifting alliances.

Ylana and Tomar become hostages of a surviving Mind Wizard who seeks shelter among the Cave People. Escaping with Ylana's deposed father brings them toward rival River People territory, where tribal tensions threaten another round of danger.

A damaged airship carries Taran, Koja, and Fido into territory ruled by the insectoid Yathoon hordes. Captivity entangles them with Princess Xara and a struggle for imperial power involving Darza, a chess game played with living combatants.