But the craft ahead was a good mile away and the _Adventurer's_ small searchlight was not powerful enough to bridge that distance with its white glare. "They're making for the harbour, anyway," said Harry Corwin, "and so she can't get away from us if we lose her now." Even as he ended the last pallid rays of the moon vanished and they found themselves in darkness save for the wan radiance of the stars. Lights unnoticed before sprang up in the gloom along the shore and a dim radiance in the sky showed where the town of Gloucester slumbered. "If they double on us now we'll lose them," muttered Steve. "Put that light out, Joe. We can see better without it." "How far off is the harbour?" asked Harry. "About two miles. You can hear the whistle buoy. That white light to the left of the red flash is the beacon on the end of the breakwater." He moved the helm a trifle and examined the chart. "There are no rocks, anyway, and that's a comfort. I can't say I like this running at night. How far away was she when the moon went back on us, Harry?" "Oh, three-quarters, at a rough guess." "Nearer a mile and a quarter, I'd say. Well, if she doesn't dodge along shore we'll have her in the harbour. Always supposing, that is, that she really is the _Follow Me_." "She can't be anything else," answered Harry. "No sensible skipper would go ploughing around at night without a light. Hello! Isn't that a light there now?" "Where? Yes, you're right! She's lighted up at last! Afraid to go in without lights, I dare say, for fear of arousing suspicion. I'm getting to believe she _is_ the _Follow Me_, Harry." "I haven't doubted it once. Do you suppose she knows we're after her?" "She knows we're here, of course, but she can't be certain we're after her. Still, turning that searchlight on was a sort of give-away. If she really does go inside it's just because she's afraid of her fuel giving out. We'd better anchor as far out as we can and keep our eyes open until daylight comes." "She couldn't get gas before morning, I guess," said Joe. "Looks to me as if, if she _is_ the _Follow Me_, they've run themselves into a trap!" "Hope so, I'm sure," said Wink Wheeler. "If we've caught her we've certainly been lucky, fellows!" "Don't count your chickens until they're hatched," advised Ossie. "Maybe she isn't the _Follow Me_ at all." "I can't see her light now," called Phil from the bow. "Hold on, there's a green light, I think! No, I guess I was wrong. Can't see anything now, Steve. Can you?" "No, she's turned and run inside back of the breakwater. Keep your ears and eyes open for that whistling buoy, Phil. I want to pass it to port." "It's pretty near. There it is now! Look!" "I've got it! All right. Now it's straight for the white beacon." Steve sighed relievedly. "No use hurrying any longer, I guess." He eased the throttle back and the _Adventurer_ slowed her pace. "Have a look at the chart, Harry. Isn't there a buoy near the end of the breakwater?"