Terl and Jonnie travel to Scotland .
Terl and Jonnie recruit 83 Scottish youths ( including several deliberately selected body doubles for Jonnie ) , old women , a doctor , and a historian to help with the mining .
Terl and Jonnie travel to Scotland and recruit 83 Scottish youths ( including several deliberately selected body doubles for Jonnie ) , old women , a doctor , and a historian to help with the mining .