The Flyman appeared at the open door. At sight of him, Miss Casata broke into a storm of exclamations.

'Not him! He shall not come in here. He killed Mr Holland! I saw him! Mr Holland's blood is on his hands! I will not have that he come in here!'

'My dearest girl, but that's absurd. He's the only one of the three who understands locks. You don't want us to irretrievably ruin Miss Bewicke's property owing to our sheer want of skill? And for a nose for such a trifle as that ruby we are hunting for he has not his equal. Now, you go and have a nice little read.'

He moved forward with the possible intention of taking her by the arm and leading her from the room. If such was his design, it failed. As he advanced, she slipped past him. Rushing to the door which led into Miss Bewicke's bedroom, she placed herself in front of it. She took out one of the three treasures which were in her pocket--the revolver. Before the three men had even dreamed that she might be in possession of such a weapon, it was pointed at their heads. Her tone when she spoke was as significant as her attitude.

'If one of you tries to come through this door, I will shoot him dead. Do not think this revolver is not loaded. I will show you.'

She fired, the bullet penetrating the opposite wall. Mr Thomas Cox ducked as it passed. His companions instinctively shrank back. Her lips parted in a grim smile. Apparently this was her idea of humour.

'You see I am not so helpless as you perhaps supposed. I am not nervous, not at all. I am used to handle a revolver. I have won prizes for pistol shooting, oh, several times. There are five more barrels which are loaded. If I aim at you, I promise that I will not miss. You shall see.'

The bearing of the trio, in its way, was comical, they were evidently so completely taken by surprise. Mr Thomas Cox, in particular, looked as if this were an expedition in which, under the circumstances, he wished he had not taken part. He said as much.

'Look here, Burton, this is more than I bargained for. Before we came I told you that I was not going to be mixed up with anything equivocal. I have my character to consider. You said your lady friend would listen to reason; if your lady friend won't listen to reason, then I'm sorry, but I'm off.'

'Then you'll lose your money.'