Seven endless forests

". . . the Cut-Queen and her band of shaven-skulled witches, The Hounds, are using their dark magic in an attempt to kill or convert everyone in Vorseland. Well, almost everyone. Seventeen-year-old Torvi and her younger sister, Frigga, are still fighting for goodness and light in a land covered in snow. But when the Cut-Queen captures Frigga, Torvi teams up with a band of new characters to rescue her sister or die trying"--OCLC.