"Far from home after escaping slavery in Skandia, Will and Evanlyn's plans to return are spoiled when Evanlyn is taken captive. Will employs his Ranger training to locate his friend, but soon finds himself fatally outnumbered-until Halt and Horace make a daring, last-minute rescue. But their reunion is cut short by the discovery that Skandia's borders have been breached by the Temujai army-and Araluen is next in their sights. Only an unlikely union...

Chasing the Skandian slave-traders who kidnapped Will and Evanlyn, Ranger Halt and warrior student Horace find themselves in the frozen northern islands, where they battle a ruthless black-clad knight as they attempt to rescue their friends.

Will, who has become a protector of his first fief after many years as a Ranger's apprentice, is faced with many challenges when Keren, a renegade knight, takes over Castle Macindaw and forges a secret alliance with Scotti.

Will is finally a full-fledged Ranger with his own fief to look after. The fief seems boring until Lord Syron, master of a castle far in the north, is struck down by a mysterious illness. Joined by his friend Alyss, Will is suddenly thrown headfirst into an extraordinary adventure, investigating fears of sorcery and trying to determine who is loyal to Lord Syron. As Will battles growing hysteria, traitors, and, most of all, time, Alyss is taken hostage,...

A tale that brings the Ranger's Apprentice series full circle finds an adult Will struggling with the loss of his wife and reluctantly mentoring the daughter of Horace and Evanlyn so she can assume leadership over the floundering Rangers.