Pilgrim Industries scheduled its annual sales meeting at Celestial City Resort from January 5-10. In addition to meeting and hotel rooms, the resort was to provide an ice-skating pond for the Pilgrim's annual employee hockey game. In the weeks before the meeting, the resort is hit with its worst heat wave on record. Although hotel and meeting rooms are available, there is no possibility of ice skating at the site. If a court finds that one of Pilgrim's principal purposes in the agreement was the inclusion of an ice-skating pond, the Pilgrim-Celestial contract could be discharged via the doctrine of: Multiple Choice novation. impracticability. frustration of purpose. impossibility. inevitability