When Teela's sister is murdered and a powerful relic is stolen, Marek and her friends face a sinister new foe: Kishkumen, a foreign mystic bent on reclaiming the Darkspore for his master Szorlok. Armed with twin maps, Marek and her team race Kishkumen and his horde through creature-infested lands to a long abandoned underground city – all while being pursued by bounty hunters intent on returning Marek to slavery.