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.

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 and Maddie are in Toscana on a diplomatic mission when word comes of a cavalry force crossing the northern body and marauding through the countryside. At the behest of the emperor, the rangers head north to investigate. They discover that the invaders are a group of Temujai—a reconnaissance force searching for a place to penetrate and invade. So Will and Maddie must split up to gather forces and information in order to push the Temujai back once again.

Jason Walker has often wished his life could be a bit less predictable--until a routine day at the zoo ends with Jason suddenly transporting from the hippo tank to a place unlike anything he's ever seen. In the past, the people of Lyrian welcomed visitors from the Beyond, but attitudes have changed since the wizard emperor Maldor rose to power. The brave resistors who opposed the emperor have been bought off or broken, leaving a realm where fear and suspicion prevail.

Matt is reincarnated as a Tree. Not just any tree, but an overpowered one in a fantasy world that serves as the battlefield for an ongoing conflict between demons and the heroes summoned to oppose them. But Matt can be a great tool against the evil forces. TreeTree (as Matt comes to be known) will learn all sorts of skills, gain levels, and in doing so, build up a forest, train young subordinates, protect a village, and more.