Ysolda has lived her life in the shadow of the wolf queen's tyrannical rule but, safe in her forest haven, she has never truly felt its threat.

Until one day when a mysterious earthquake shakes the land and her older sister Hari vanishes in its wake.

Accompanied by her loyal sea hawk, Nara, Ysolda embarks on a desperate rescue mission. But when she is forced to strike a bargain with the wolf queen herself, she soon finds herself embroiled in a quest for a magic more powerful - and more dangerous - than she could ever have imagined ...

This is the first in the Geomancer trilogy, from the Sunday Times bestselling author of Julia and the Shark, The Mercies and The Girl of Ink and Stars.