...surprise, a silver lining for Delight Tremaine, the C.O.'s sister of an Alaska Army post, and handsome Lt. William Mason whose reserve is formidable. As together they search for, spot and turn in the spy operating up there in the limber-lost, alone they face the ""dark cloud"" of the past; Mason, answering a $1000 challenge, had married an unknown girl off the streets; and Delight (although amnesia had obscured this for her) had been that girl- to save her sister-in-law. Now as they are confronted with their marriage, love makes it excusable and desirable for both.... The Worst She Has Ever Done, which must be something in the way of a high low.