For eight hours he slept soundly, as was his wont, then, also according to his habit and training he came wide awake, with no intermediate stage of napping.
"Clio?" he whispered. "Awake, girl?"
"Awake!" her voice come through the ultra phone, relief in every syllable. "Good heavens, I thought you were going to sleep until we got to wherever it is that we're going! Come on in, you two—I don't see how you can possibly sleep, just as though you were home in bed."
"You've got to learn to sleep anywhere if you expect to keep in...." Costigan broke off as he opened the door and saw Clio's wan face. She had evidently spent a sleepless and wracking eight hours. "Good Lord, Clio, why didn't you call me?"
"Oh, I'm all right, except for being a little jittery. No need of asking how you feel, is t
