(Continued from page 75.)

Having secured the turret door to prevent interruption, Alan drew Marjorie to the settle, and began the story of his adventure in the wood: how he had discovered the secret passage from the cliff into the great cave; how he had lingered that very morning near the old ruined summer-house, and heard Thomas and the other man talking; and how he had seen Peet leave the ruin.

'Now it comes to this,' he wound up. 'Thomas is up to some fishy thing or other, bribed by a greater villain than himself. The question is, what is he up to? Can you guess?'

'If it was burglary,' said Marjorie, sagely, 'what could they possibly want in the ruined summer-house? I have never been into it, but I can't fancy anything of value can be kept there.'

'Yet those two men were hunting just now for the cellar door that led to it.'

'So they were.'

Marjorie sat silent, thinking the problem out. Alan did not interrupt her, so great was his faith in his sister. She often hit on the right clue when they were puzzled over things, and he felt that, even if she could not do so in the present case, it would be a great comfort to be able to talk over each new discovery with her, and have her help when he needed it.

'One thing struck me,' said Marjorie at last. 'When there was that fuss about the summer-house door being open, do you remember how anxious Thomas was to get in? Did you see what a cross look he had all the time Peet was speaking? It was just as if he hated Peet. I wonder if he wants to do him some injury?'

'Hu-um,' pondered Alan, taking in the new idea slowly; 'no one can like that surly old Peet, but doing him an injury is another thing. I expect you have the right end of the thread, but what is it going to lead to? Has Peet anything valuable in the ruin? And if he has—and it seems as if he must have—how can I find out what it is, or where it is? I dislike him, in spite of Aunt Betty calling him a rough diamond; but of course I wouldn't see him robbed or cheated.'

'I should think not, nor anybody else either. But what do you think we ought to do? Why not tell Father about it, and ask him to keep the secret till something turns up? He would find out at once what Peet has in the summer-house.'

But Alan, always inclined to be rather selfish and wilful, thought this would spoil the fun of discovering it themselves, and would not listen to the proposal for an instant.

'We will make a thorough examination of the ruin outside first,' he began; 'that is, as soon as this weather will let us. The whole place will be dripping for a day or two, but I don't mind that.'

A sudden outburst of barks and yelps, accompanied by a clamour of voices, came up from below. Running to the window, they caught sight of the cause of the shouts and howls. The dogs were being led back to their kennels, and as they were in a savage mood, the men were persuading or forcing them on. To the amazement of the brother and sister, Thomas was with the party, apparently as completely at home as if he had never fled from the hounds.

'I say!' exclaimed Alan; 'I wonder how he managed that?'

'I know,' said Marjorie; 'he probably told them he was running after the other man, but could not catch him. You see the other one isn't there. I expect it was the only way of preventing the servants and dogs going into the room where they took refuge.'

And this is exactly what had occurred. Alan, much impressed with this version of the affair, sprang up, declaring he must go down and hear how it was that the dogs were loose, and had got upon the man's track.

Off he rushed, leaving Marjorie to go downstairs and see how Estelle was. She found Miss Leigh had been looking for her for a long time, and was not in the best of tempers in consequence. Estelle was better, but the doctor desired she should be kept in bed for the remainder of that day, and not run about much for a day or two. No one could understand the cause of the fainting fit, and Marjorie was called upon to explain what they had been doing. They had been playing in the passages, she said, and were on the tower stairs when the dogs burst in. Estelle was frightened, and had rushed into the corridor, and when Marjorie and Alan followed her, she was found lying on the floor. It all sounded very simple. But Marjorie felt very mean and uneasy about the concealment; she felt that it was as bad as telling a lie, and only her promise to Alan, rashly given, kept her from disclosing everything.

'The whole business is most mysterious,' said Colonel De Bohun, in a tone of annoyance. 'How it came about that there was a strange man—a tramp, I suppose—wandering so near the house, I cannot imagine. Thomas saw him, and so did James, most luckily; and Thomas was wise enough to give chase at once, but the rascal seems to have escaped him. He was a nimble sort of a fellow, James says, and it seems that the moment the grooms got wind of it, they let the dogs loose. Lucky none of them were hurt.'

'So this was the way Thomas managed!' thought Marjorie. 'What a sharp fellow he is! Oh, if Father only knew!'

'Has the man gone?' asked Lady Coke, anxiously.

'I should think so. We can't find him, at all events. He knows all the men are on the alert, so I think you are safe, I will remain here if you are nervous.'

It was considered better that he should remain, Lady Coke being old and very frail in spite of her activity and energy of character. Miss Leigh was to take the children home, and explain all that had occurred to Mrs. De Bohun, who was laid up with a cold.

(Continued on page 94.)