The keepers of the keys

"Against all odds, cubs Stellan, Jytte, Third, and Froya have found the key hidden inside the legendary Den of Forever Frost. Now they have everything they need to destroy the dangerous Ice Clock. Enerything except an army. The power-hungry Grand Patek will stop at nothing to protect the clock, the source of his authority. And so it's up to the cubs to convince the animals of Ga'Hoole to join the fight, a journey that will take them from the fabled owl parliament to the rugged territory of the wolves of the Beyond. But the owls and the wolves have secrets of their own, secrets that threaten to fracture the fragile alliance. Do Stellan and Jytte have what it takes to become the leaders of the resistance? Or will the bears be left on their won to battle the greatest enemy Ga'Hoole has ever known?"--Dust jacket.