"Simply that I can"t."
"Were you offended, Merle, because we didn"t come when you called us?"
asked Cicely.
"We were hurrying up as fast as we could, only Miss Frazer stopped us and made us tidy our drawers. It wasn"t our fault," added Lindsay apologetically.
"No, I"m not offended in the least. I"m very glad you didn"t come."
"But you shouted to us to be quick."
"I know I did."
"Was it something or somebody you saw in that room?"
"Please don"t ask me."
"But look here, Merle, this is too bad," protested Lindsay. "You"re playing a very nasty trick upon us."
"It can"t be helped. I"ve said I am sorry," returned Merle doggedly.
"Well, you are a fraud," cried Cicely. "I like people who keep their promises."
"So do I," said Merle, in rather a significant tone. "It"s exactly what I intend doing, too."
"You don"t mean to say you"ve promised not to tell!" exclaimed Lindsay.
"I didn"t say anything at all."
"Have you told Elsie Ryder or Marjorie Butler?"
"Certainly not. I haven"t mentioned the matter to anybody, and I hope you won"t either."
"But why shouldn"t you whisper it just to Lindsay and me? We wouldn"t let a soul know," pleaded Cicely reproachfully.
"I can"t explain why. Do let us drop the subject."
Here was indeed a deadlock. They had been afraid lest Merle should betray her secret indiscreetly, but they had certainly never contemplated being kept out of it themselves. The more they pressed her, the more obstinately she refused, and neither scolding nor coaxing would induce her to disclose even the least hint. They gave it up at last, feeling very baffled and rather out of temper.
"We do know something about your old room, all the same," said Lindsay crossly, as a parting shot.
"Oh, Lindsay, you don"t really!"
There was an anxious note in Merle"s voice.
"More than you think."
"Then, whatever it is, you had better keep it to yourselves, and not let it go any farther."
Merle"s extraordinary behaviour seemed to make the mystery even deeper than before. She had evidently been exploring the Manor on her own account and had made some discovery, which she undoubtedly had intended to share with them when she called from the window. Then something must have occurred afterwards which caused her to change her mind.
To whom had she given a promise of secrecy? Surely not to Mrs. Wilson?
That would be aiding and abetting one whom they strongly believed to be Monica"s enemy. If only Miss Frazer had not such a tiresome love of tidiness, they might have reached the lantern room in time, and be now in possession of the information they wanted. It was too tantalizing to feel that they had been so near a solution of the problem, and had missed it by a few moments.
Events never happen singly. For a whole fortnight they had been able to find out nothing, yet on the very day following this disappointment something occurred which seemed to add another link to their chain of strange circ.u.mstances. They had managed to escape Miss Frazer"s vigilance, and were indulging in a surrept.i.tious game of "tig" along the forbidden ground of the picture gallery, when one of the bedroom doors opened, and Mrs. Wilson appeared in the distance, carrying a pile of clean towels in her arms.
"There"s "The Griffin"!" exclaimed Lindsay. "She mustn"t catch us here, on any account. She"ll tell Miss Russell, and we shall each lose a conduct mark. Quick! Let us hide somewhere till she"s gone by."
The ancient arras seemed to offer a safe retreat. As fast as possible they whisked behind it, and stood flattening themselves against the wall, hoping Mrs. Wilson would notice nothing lumpy or unusual as she pa.s.sed.
At the same time came a sound of heavy tramping footsteps from the other end of the gallery, and Cicely, peeping through a hole in the tapestry which happened to be on a convenient level with her eyes, saw Scott, the gardener, coming down the flight of stairs which led from the upper landing. He met Mrs. Wilson exactly opposite the hiding-place where the girls were concealed, and the two stopped to speak, quite unaware that listening ears were eagerly following their conversation.
"Have you been in the lantern room?" began the old housekeeper uneasily.
"I"d no idea you were going up this afternoon."
"Thought I"d best take a look," returned Scott.
"There wasn"t any need. I was there myself this morning, and things were all right."
"I don"t know what you may call all right," grunted Scott. "There was far too much noise going on to satisfy me."
"You don"t think there"s any danger----?" burst out Mrs. Wilson, in an anxious voice.
"No, no!" interrupted Scott quickly. "Not for the present, at any rate.
Don"t upset yourself. Still, it needs care, especially with all this crew in the house."
"Yes, it"s that that"s worrying me. I shan"t breathe freely till they"re gone. And such an inquisitive, meddlesome set they are, too! You"d scarcely believe the trouble they give me. Two of them took it into their heads one day to go wandering on the upper landing. I actually found them inside the lantern room!"
Scott gave an exclamation of something like alarm.
"That"ll never do!" he said. "You mustn"t let them go poking about there; it would be most unsafe. Can"t you lock the door?"
"No, the key"s lost."
"I must try if I can find a padlock for it."
"I wish you would. It would take a load off my mind. By the by, I wanted to warn you----"
But here one of the housemaids came along the landing, Mrs. Wilson"s voice sank to a whisper, and the only words audible were "Miss Monica", "evening", and "wouldn"t trust".
"I"ll be extra careful," said Scott, as he clumped away.
Lindsay and Cicely waited several moments after the gallery was empty before they ventured to emerge from behind the tapestry. They had the great satisfaction of having learnt something. They now knew definitely that there was a secret in connection with the lantern room which both Mrs. Wilson and Scott were anxious to keep from them.
"What can it be?" speculated Cicely. "Did you notice what he said about the noise? It must have been that dreadful groaning we heard."
"I"ve been thinking about that," replied Lindsay. "There may be a hidden room, and someone shut up in it."
"As a prisoner, do you mean?"