That spelled serious trouble if Dave and his friends should tarry there. Midshipmen are in no sense free from arrest by the civil authorities, and it is likely to fare hard with Uncle Sam's young sailors if they are taken in by the civil authorities. "Come along," muttered Darrin, leading the way. He did not run, but he certainly walked fast, and in a direction away from Main Street. His two companions followed him. The "unknown midshipman," taking Darrin's shrewd hint, had already made himself invisible. After the prompt drubbing they had received, not one of the young civilians felt any desire to follow these husky midshipmen. The police in Annapolis are few in number, and so do not always hear a street summons. In this instance Dave and his friends turned a corner and were soon away from the scene of the late affair. "Now, I hope you've had all the excitement you want, Joyce," Dave remarked dryly. "Like most good things, it didn't last long," complained Joyce. "Oh, it isn't over yet, by any means. We've the O.C. and the com. to face," grumbled Darrin. "But we couldn't stand by and see one of our own punched by a whole gang." "Of course we couldn't, but why fuss about the com, and his satellite, the O.C.? They'll never hear of this." "I think there's a big chance that we shall hear of it," retorted Dave. "That's why I advised you not to look at the unknown midshipman closely enough to be able to recognize him in the dark." "I don't know who he was," admitted Dan candidly. "Nor do I," supplemented Joyce. "Then, whoever he is, the chap stands little chance of being caught unless he voluntarily announces himself." Presumably the police didn't answer the hail of the young civilians. At any rate, Darrin and his friends heard nothing more of the matter while in town. But when they returned to Bancroft Hall the trio were met by this announcement: "The officer in charge wishes to see you in his office." "It's coming," warned Dave, as he and his companions turned and went in to report themselves. "There has been a disturbance in Annapolis," stated Lieutenant-Commander Denham. "Mr. Darrin, were you in it?" "I was in one kind of disturbance, sir," Darrin answered at once. "Of what kind?" "Several civilians attacked a man in a midshipman's uniform. I went to his aid." "And attacked some civilians?" "Yes, sir." "Mr. Dalzell, Mr. Joyce, did you also take part in that affair?" inquired the O.C. "Yes, sir," answered both midshipmen. "For what reason?" "Because, sir," answered Joyce, "several civilians pounced upon one man who wore a midshipman's uniform." "And you three rushed in and pounded some civilians?" asked the O.C. coolly. "I'm afraid we did, sir," answered Dave, who found the lieutenant-commander's gaze turned on him. "Who was that other midshipman, Mr. Darrin?" "I don't know, sir." "Didn't you recognize him when you went to his aid?" "I did not, sir."