run round them, and when Block came up, they nodded to him, and made as if to go on their way. But the man stopped them.
'That dog seems to be a friend of yours,' he said, in his curious monotone of a voice.
'Oh yes. He goes with us each morning now,' said Julian, politely. 'He quite thinks he's our dog! Nice fellow, isn't he?'
Block stared at Timmy, who growled. 'Mind you do not bring that dog into the house,' said Block. 'If you do, Mr Lenoir will have him killed.'
Julian saw George's face beginning to turn red with fury. He spoke hurriedly. 'Why should we bring him to the house, Block? Don't be silly!'
Block, however, did not appear to hear. He gave Timmy a nasty look, and went on his way, occasionally turning round to look at the little company of children.
'Horrid fellow!' said George, angrily. 'How dare he say things like that?'
When they got back to Marybelle's bedroom that morning, they pulled Timmy up from the pit, and let him out of the basket. 'We'll put him into the secret passage as usual,' said George, 'and I'll put some biscuits in with him. I got some nice ones for him this morning, the sort he likes, all big and crunchy.'
She went to the door - but just as she was about to unlock it and take Timmy into Sooty's room next door, Timmy gave a small growl.
George took her hand away from the door at once. She turned to look at Timmy. He was standing stiffly, the hackles on his neck rising up, and he was staring fixedly at the door. George put her hand to her lips warningly, and whispered:
'Someone's outside. Timmy knows. He's smelt them. Will you all talk loudly, and pretend to be playing a game? I'll pop Timmy into the cupboard where the rope-ladder is kept.'
At once the others began to talk to one another, whilst George swiftly dragged Timmy to the cupboard, patted him to make him understand he was to be quiet, and shut him in.
'My turn to deal,' said Julian loudly, and took a pack of snap cards from the top of the chest. 'You won last time, Dick. Bet I'll win this time.'
He dealt swiftly. The others, still talking loudly, saying anything that came into their heads, began to play snap. They yelled 'snap' nearly all the time, pretending to be very jolly and hilarious. Anyone listening outside the door would never guess it was all pretence.
George, who was watching the door closely, saw that the handle was gradually turning, very slowly indeed. Someone meant to open the door without being heard, and come in unexpectedly. But the door was locked!
Soon the person outside, whoever it was, realised that the door was locked, and the handle slowly turned the other way again. Then it was still. There came no other sound. It was impossible to know if anyone was still outside the door or not.
But Timmy would know! Signing to the others to carry on with their shouting and laughing, George let Timmy out of the cupboard. He ran to the door of the room, and stood there, sniffing quietly. Then he turned and looked at George, his tail wagging.
'It's all right,' said George to the others. 'There's no one there now. Timmy always knows. We'd better quickly take him into your room, Sooty, while the coast is clear. Who could it have been, do you think, snooping outside?'
'Block, I should say,' said Sooty. He unlocked the door and peered out. There was no one in the passage. Sooty tiptoed to the door at the end and looked out there also. He waved to George to tell her it was all right to take Timmy into his room.
Soon Timmy was safely in the secret passage, crunching up his favourite biscuits. He had got quite used to his queer life now, and did not mind at all. He knew his way about the passage, and had explored other passages that led from it. He was quite at home in the maze of secret ways!
'Better go and have our dinner now,' said Dick. 'And mind, Anne - don't go and say anything silly in front of that horrid Block, in case he reads your lips.'
'Of course I shan't,' said Anne, indignantly. 'I wouldn't have