Kidnapped after the fierce battle with Lord Morgarath, Will and Evanlyn are bound for Skandia as captives aboard a fearsome wolfship. Halt has sworn to rescue Will, and he will do anything to keep his promise - even defy his king. Expelled from the Rangers he has served so loyally, Halt is joined by Will's friend Horace as he travels toward Skandia. On their way, they are challenged constantly by freelance knights - but Horace knows a thing or two about combat. Soon he begins to attract the attention of knights and warlords for miles around with his uncanny skill.

For years, the Kingdom of Araluen has prospered, with the evil lord Morgarath safely behind the impassable mountains. For years, its people have felt secure. But the scheming hand of the dark lord has not been idle.... On a special mission for the rangers, Will and his friend Horace, an apprentice knight, travel to a neighboring village and discover the unsettling truth: All the villagers have either been slain or captured. Could it be that Morgarath has finally devised a plan to bring his legions over the supposedly insurmountable pass?

Halt makes a horrifying discovery: Skandia's borders have been breached by the entire Temujai army. And Araluen is next in their sights. If two kingdoms are to be saved, an unlikely union must be made. Will it hold long enough to vanquish a ruthless new enemy? Or will past tensions spell doom for all?

Five years have passed since the Skandians and the Araluans made their treaty, and Will has finally become a Ranger, with his own fief to look after. He soon learns that even sleepy little islands have problems to keep him on his toes. Then he and his old friend Alyss are thrown into a terrifying new adventure, investigating the truth behind rumours of sorcery in a remote northern fief.

As the Kingdom of Araluen prepares for war against Morgarath, Will and Horace accompany the Ranger Gilan on a mission to Celtica. But Celtica's villages and mines are silent. Only an exhausted and starving girl called Evanlyn can tell them why: Morgarath has sent his foul creatures to enslave the Celts. While Gilan rides swiftly back to Araluen to report this news to the King, Will and Horace discover the true purpose behind Morgarath's actions.

After years as a Ranger's apprentice, Will is now the protector of his first fief. Not long into his service, everything that can go wrong does: Keren, a renegade knight, has taken over Castle Macindaw, a strategic gateway to the North - poisoning the royal family in the process - and is holding Will's friend Alyss captive. The situation grows direr when Will uncovers Keren's secret alliance with the Scotti, who have plans to plunder Araluen. Time is of the essence; Will must recruit a motley crew to rescue Alyss and reclaim Castle Macindaw - before the Scotti can make it their own.

Mankind puts its faith in many things - gods, kings, money - anything for protection from the worlds many dangers. When a cult springs up in neighboring Clonmel, promising to quell the recent attacks by lawless marauders, people flock to offer gold in exchange for protection. But this particular group, with which Halt is all too familiar, has a less than charitable agenda. Secrets will be unveiled and battles fought to the death as Will and Horace help Halt in ridding the land of a dangerous enemy.

The renegade outlaw group known as the Outsiders may have been chased from Clonmel, but not before killing Halt's only brother. Now Rangers Halt and Will, along with the young warrior Horace, are in pursuit. The Outsiders have done an effective job of dividing the kingdom into factions and are looking to overtake Araluen. It will take every bit of skill and cunning for the Rangers to survive. Some may not be so lucky.

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.

Will Treaty has come a long way from the small boy with dreams of knighthood. Life had other plans for him, and as an apprentice Ranger under Halt, he grew into a legend - the finest Ranger the kingdom has ever known. Yet Will is facing a tragic battle that has left him grim and alone. To add to his problems, the time has come to take on an apprentice of his own, and it's the last person he ever would have expected. Fighting his personal demons, Will has to win the trust and respect of his difficult new companion - a task that at times seems almost impossible.

Number one New York Times best-selling author John Flanagan returns to the world of Ranger's Apprentice, beginning a new story arc starring fan favorites, Will and Maddie (Ranger's Apprentice: The Royal Ranger). Picking up where Ranger's Apprentice: The Royal Ranger left off, this next installment continues the story arc featuring young apprentice, Maddie, and the student-turned-master, Will Treaty. The time has come for the next generation to assume the mantle and become protectors of the kingdom of Araluen.  

They are outcasts. Hal, Stig, and the others - they are the boys the others want no part of. Skandians, as any reader of Ranger's Apprentice could tell you, are known for their size and strength. Not these boys. Yet that doesn't mean they don't have skills. And courage - which they will need every ounce of to do battle at sea against the other bands, the Wolves and the Sharks, in the ultimate race. The icy waters make for a treacherous playing field - especially when not everyone thinks of it as playing.

King Duncan and Princess Cassandra are trapped in the south tower of Castle Araluen and under near-constant attack from the Red Fox Clan. Sir Horace and Ranger Commandant Gilan are holed up in an old hill fort, surrounded by the enemy. And Ranger's apprentice Maddie is the only one who can save them all. With the help of Hal, Thorn, and the rest of the Heron brotherband, Maddie will have to break her father and his men out of the hill fort, but will they reach Castle Araluen in time?

When Halt and Crowley discover that the ambitious Morgarath has been infiltrating the Rangers in order to corrupt the Corps, the young Rangers travel north to find Prince Duncan, seeking a royal warrant to stop Morgarath before it is too late. By weakening the Rangers, the most powerful force in support of the King, Morgarath plans to steal the throne.

Will Treaty and his apprentice, Maddie, have been urgently summoned to Castle Araluen. When they arrive they learn a shocking truth: the Prince of Gallica is missing - and the King of Gallica has asked for help. All reports suggest that the young prince has been taken prisoner by the dangerous and powerful Baron Joubert de Lassigny. King Duncan knows that sending troops to Gallica to rescue the prince could start a war, as could openly helping Gallica resolve internal convict. But there's another way to save the prince: the Ranger Corps.