Chosen for the honour of bonding with a frostsliver - a fragment of the sentient glacier that crests her icy home - Sabira embarks on the dangerous pilgrimage to the top of the mountain.

But when a huge avalanche traps her on the glacier and destroys the pass, Sabira is determined to find another way home. In order to survive, she must face up to the merciless mountain - but there are dark and fiery secrets hiding in its depths …