The Ice's Voyagers — Meyari McFarland

Xun's breath puffed into the air, crystallizing in a cloud. So cold. If Chifundo hadn't begged… But she had. And Xun had to answer her, treking all the way up to the glaciers over Turnbull. Only to discover that Chifundo didn't want her. Or need her. Something was very, very wrong. Xun had to fix it or lose her cousin forever. If it wasn't already too late.