You can legally access The Stolen Heir through libraries using OverDrive or purchase it from major retailers such as Amazon, Barnes & Noble, or Waterstones.
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.