For a moment Carmel's heart stood still. She realized instantly that she was in the immediate vicinity of a burglar. Seeing the entertainment advertised by a placard on the gate, he must have entered the garden and waited his opportunity to slip into the house while everybody was outside watching the performance. He was apparently laying light fingers upon any article which took his fancy.

Carmel's first and most natural impulse was to tear downstairs and give warning of what was happening. Then it occurred to her that while she did so the thief would very possibly make his escape. If only she could trap him. But how? Her fertile brain thought for a second or two, then evolved a plan.

Very quietly she withdrew the key from the door which led out of her bedroom to the passage, and locked it on the outside. So far, so good: if Mr. Burglar went into the dressing-room he could not escape. Now she must be prepared to take a great risk. The key of the Blue bedroom was on the inside; she must open the door, withdraw it, and lock it on the outside before the thief could stop her. It was possible that he had calculated on the double exit, and that, hearing a noise behind him, he would make a dash for the dressing-room.

With shaking legs, and something going round and round like a wheel inside her chest, she approached the Blue bedroom door, and opened it softly. As she had anticipated, the intruder had probably laid his plans, for at the first sound he turned his head, then slipped like a rabbit into the dressing-room. No doubt an unpleasant surprise awaited him there, for as Carmel's trembling fingers drew out the key, and locked the door from the passage side she could hear the handle of her own bedroom door moving.

"He's probably got skeleton keys, or a jemmy, or something like they use on the cinema, and will be out in a minute, but I'll get a start of him!" she thought, and tearing down stairs like the wind, she literally flew into the garden, and gasped forth the thrilling news.

"It's the Blue bedroom—watch the window or he may jump out!" she added quickly.

There was an instant rush towards the house; Miss Walters, with Milner and four other chauffeurs to support her, dashed up stairs, Mr. Bowden and a crowd of visitors took their stand under the windows. Shouts from the bedroom presently announced that the burglar had been secured, and after a while he was led down stairs with his wrists fastened together by a piece of clothes line, and guarded on each side by two determined looking men, who hustled him into a car, and drove him off at once to the police station at Glazebrook.

The excitement at Chilcombe Hall was tremendous. It was of course impossible to go on with the entertainment. Mistresses, girls, and guests could do nothing but talk about the occurrence. Carmel was questioned, and gave as minute and accurate an account as she could of exactly what had happened. She was much congratulated by everybody on her presence of mind.

"I don't know how you dared do it!" shivered Dulcie. "He might have shot you with a revolver!"

"You're a brave girl!" said Miss Walters approvingly. "If it hadn't been for your prompt action, in all probability he would have got away."