Vrenli has never left Abketh. Now he is asked to accompany a stranger to Astinhod.
Gorathdin of the Forest is travelling on behalf of King Grandhold. The blossoms of a rare moonflower may help the king's gravely ill daughter, Princess Lythinda. Gwerlit asks Vrenli to accompany Gorathdin on the return journey and deliver a message to the mage Master Drobal. Vrenli's friend Werlis joins them.
Their road leads through Tawinn, the ruins of an ancient realm, across Lake Taneth, and through the Ice Mountains. Along the way, the southerner Aarl and the exiled dwarf Borlix join the group. Three travellers become a fellowship that must defend itself against forest goblins, ogres, orcs, and other enemies.
In Astinhod, it becomes clear that Lythinda's illness is only one part of a wider attack. Erwight of Entorbis possesses the Book of Wetherid, stolen decades earlier, and is preparing for war with the powers of Fallgar. When Vrenli is separated from his companions and arrives in DeShadin, several groups must pursue different objectives at once: save Lythinda, find Vrenli, reach Horunguth, and warn the free peoples before Erwight's army advances.
The story crosses Astinhod, DeShadin, the Dark Forest, Thir, Horunguth, Irkaar, the Glorious Valley, and Ib'Agier. There, the separated paths converge as humans, dwarves, elves, Abkethers, desert peoples, and barbarians decide whether they will stand together against Fallgar.