After Ranger's apprentice Will battles Temujai warriors to rescue the captured princess Evanlyn, Will's kingdom of Skandia joins forces with rival kingdom Araluen to defeat a common enemy.

Will is forced to overcome his fear of Wargals, the foot soldiers of rebel warlord Morgarath, as Araluen's army prepares to battle Morgarath's forces.

When fifteen-year-old Will is rejected by battleschool, he becomes the reluctant apprentice to the mysterious Ranger Halt, and winds up protecting the kingdom from danger.

Now a full-fledged Ranger responsible for a sleepy fief, Will finds a new adventure seeking the traitors who poisoned the king, investigating rumors of sorcery, and trying to rescue his friend Alyss, who is taken hostage.

On a mission to pay the ransom of a new ally, apprentice Will and the Rangers must first survive the dangerous effects of a desert wasteland.

In a society that values strength over intellect, Hal's ingenuity, combined with the fact that his mother was a slave, sets him apart from other boys his age. As he and his peers compete in training designed to test their strength and endurance, Hal realizes he is not the only outcast and struggles to carve out a place for himself.

Months have passed since Horace departed for the eastern nation of Nihon-Ja on a vital mission. Having received no communication from him, his friends fear the worst. Unwilling to wait a second longer, Alyss, Evanlyn, and Will leave their homeland behind and venture into an exotic land in search of their missing friend. When they finally catch up with him, they find Horace entangled in a military coup. Determined to protect the imperial throne, Will...

In a faraway land, a young warrior must protect an emperor from an uprising and train an inexperienced army, with assistance from his Ranger friends.

Held captive by the dangerous baron Lassigny, Will Treaty and his fearless young apprentice, Maddie, must outwit the baron with the help of their friends from home to escape.

On a high-risk mission to rescue Empress Justina's son from his pirate kidnappers, Hal and the brotherband crew set sail amid stormy seas to the island of Santorillos where they encounter a formidable obstacle, a caldera.