The Stolen Heir by Holly Black, the first in a new duology set in the Folk of the Air universe, follows Suren and Prince Oak on a dangerous quest to the icy north to stop Lady Nore. The narrative explores themes of betrayal and political intrigue as the characters confront their pasts.
You can legally access The Stolen Heir through libraries using OverDrive or purchase it from major retailers such as Amazon, Barnes & Noble, or Waterstones.