Nelson shouldered his way inside, and stood there in his dripping oilskins, blinking his eyes against the yellow light. Curtis closed the door and nodded toward the bent form of Zukor Androka, with a quizzical grin. "Old Czech-and-Double-Czech is working hard on his latest invention to pull Hitler's teeth and re-establish the Czech Republic!" Nelson had no answering smile, although there had been a great deal of good-natured joking aboard the _Comerford_ ever since the navy department had sent the scientist on board the cruiser to carry on his experiments. "I'm worried, sir!" Nelson said. "I'm not sure about my dead reckoning. This storm--" Curtis threw his arm around Nelson's dripping shoulders. "Forget it! Don't let a little error get you down!" "But this storm, sir!" Nelson avoided Curtis' friendly eyes and slipped out from under his arm. "It's got me worried. Quartering wind of undetermined force, variable and gusty. There's a chop to the sea--as if from unestimated currents among the islets. No chance to check by observation, and now there is a chance--look at me!" He held out his hands. They were shaking as if he had the chills. "You say there is a chance?" Curtis asked. "Stars out?" "As if by providence, sir, there's a clear patch. I'm wondering--" His voice trailed off, but his eyes swung toward the gleaming sextant on the rack. Commander Curtis shrugged good-naturedly and reached for the instrument. "Not that I've lost confidence in you, Nels, but just because you asked for it!" * * * * * Curtis donned his slicker and went outside, sextant in hand. In a few minutes he returned and handed Nelson a sheet of paper with figures underlined heavily. "Here's what I make it," the commander told his navigating officer. "Bet you're not off appreciably." Nelson stared at the computations with shaking head. Then he mutely held up his own. Curtis stared, frowned, grabbed his own sheet again. "Any time I'm that far off old Figure-'em Nelson's estimate, I'm checking back," he declared, frowning at the two papers and hastily rechecking his own figures. "Call up to the bridge to stop her," he told Nelson. "We can't afford to move in these waters with such a possibility of error!" Nelson complied, and the throbbing drive of the engines lessened at once. Nelson said: "I've been wondering, sir, if it wouldn't be advisable to try getting a radio cross-bearing. With all these rocks and islets--" "Radio?" repeated the little Czech, thrusting his face between the other two, in his independent fashion that ignored ship's discipline. "You're using your radio?" He broke into a knowing chuckle, his keen old eyes twinkling behind their thick lenses. "Go ahead and try it. See how much you can get! It will be no more than Hitler can get when Zukor Androka decrees silence over the German airways! Try it! Try it, I say!"