Onixian - The Dragon Keeper Chronicles, #4

The praised dragon saga featuring anthropomorphic animals comes to a thrilling end with the fourth and final book in this upper middle-grade series. The Norterridane from Genorrdia are back. Only this time, the canine-like creatures, whose elders made a pact to protect and keep young dragons, are questioning their purpose. With the exhausting and constant fighting against the cave lizards, the Norterridane are relying heavily on the healing properties of the magic stones for recovering from battle.
Except that these stones are becoming more and more scarce and Genorrdia is running out of magic. Onixian is the most powerful serpent and no dragon can kill him. But even he sees the necessity to ally with his enemies to defeat the dark hunters whose mission is to have the magic for themselves for evil. With an upcoming battle on the horizon, will the adversaries break their centuries-long animus in order to protect the source of the magic stones? Their futures depend on it.