"Who is in this room?" Blue Bonnet whispered. "Oh, Blue Bonnet," came the answer, "is it you? I was going back to find you. I thought you'd be scared to death. Isn't this the worst ever? Who would have thought Wee could have been such a fool! Take hold of my hand; I know every step of the way." "Do you think any of the girls have been caught, Annabel?" "I don't know. If they haven't it's good luck, not good management. Look out--there ought to be a step here--yes, there is, walk carefully. No sprained ankles to-night." Just how they reached their rooms Blue Bonnet never quite knew. She trusted Annabel and followed meekly as a newly born lamb should. When they parted at Blue Bonnet's door Annabel gave Blue Bonnet a swift hug. "You're game clear through," she said. "I think everything is all right. I can't hear a sound anywhere." Somewhere down the length of the hall a clock struck. Annabel and Blue Bonnet both counted: one--two--three! "Three o'clock and all is well!" Annabel said. "Good night. Don't worry." * * * * * It was at breakfast the next morning that Madam de Cartier remarked to one of the girls at the French table: "I fancied I heard a scream last night--or this morning, rather. It sounded down Commonwealth Avenue. A piercing scream, as though some one were in great distress. Did any one else hear it?" "Yes, Madam de Cartier," Sue Hemphill said, equal to the occasion. "It was dreadful, wasn't it? As if some one were horribly frightened. It was about three o'clock, I think. I was awake and heard the clock striking on the lower corridor. What could it have been?" "I really don't know, Miss Hemphill, though I have a theory. I may be quite wrong, however. It seems strange, doesn't it? This street is so eminently respectable and quiet." Sue met Madam de Cartier's eye unflinchingly. There was an unfathomable twinkle in Madam's that meant much or little. Madam was naturally merry. Nevertheless, Sue, for all her bravado, was worried. She changed the subject immediately. "Sue's perfectly furious at Deborah," Annabel said, catching up with Blue Bonnet on the way to chapel. "She won't speak to her this morning. I ran in to borrow a tie a minute before breakfast, and Wee had been crying. Poor old Wee! I feel sorry for her. She's such a good sport generally. I reckon she can't help being afraid of mice. Some people are, you know--awfully!" "Do you think anybody knows about what happened?" Blue Bonnet asked. Annabel laughed. "I don't know. Miss North acted awfully queer this morning. One of the girls asked if anybody heard that scream in the night, and the funniest look came over Miss North's face. To tell the truth, I think the teachers know all about it and the joke's on us. I haven't been so scared in an age. It's pretty risky for a Senior to be up to such high jinks." "Will Miss North do anything about it, do you think?"