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.

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.

Now a full-fledged Ranger, Will must rescue his friend Alyss from a rogue knight and uncover vital information needed to ward off a Scotti invasion.

Tennyson, the false prophet of the Outsider cult, has escaped and Halt is determined to stop him before he crosses the border into Araluen, but Genovesan assassins put Will and Halt's extraordinary archery skills to the test.

Halt, Will, and Horace set out for Hibernia, where a quasi-religious group, the Outsiders, is sowing confusion and sedition, and they find that secrets from Halt's past may hold the key to restoring order before the last kingdom is undermined.

"Will Treaty is a shell of his former self, and his first apprentice may be the only one who can save him"--

"When the former Baron Morgarath escaped to avoid punishment for treason, an uneasy peace fell on the kingdom of Araluen. But Morgarath, now in hiding, is already planning his next move, recruiting an army of savage beasts known as Wargals. Newly crowned King Duncan knows he must assemble his troops for battle. To unveil the full extent of Morgarath's plans, Halt prepares for a seemingly impossible task--climbing the deadly cliffs of the Mountains...

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...

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.

After investigating a reconnaissance force invading the northern countryside, Will and Maddie split up to gather intel and allies to defend their territory.