Race to Frostfall Mountain by Jess French

The island of Ramoa was once luscious and populated with mighty beasts. Now though, it is home to barren and tamed cities, where nature is locked out and trouble is brewing. When Kayla’s beloved animal companion, a rare winged pangron, is stolen, she’s determined to get him back. But to do so, she’ll have to leave her city and journey into the wild and forbidden Beastlands. There, she meets Rustus, an exiled young warrior, and Alethea, a healer desperately seeking a cure for a mysterious disease. As their quests unite them, they’ll adventure across the lands they know so little about, leading them to discoveries both great and terrifying. Not least that the beasts they’ve always been taught to fear might not be so terrifying after all.