R IX.

THE DIAMOND CLASP.

They then left the room. Nick dispatched Patsy secretly to the Stevens
house.

Shortly before noon, Colonel Richmond, Horace, and Nick took a train for
the city.

At two o'clock they entered the vault of the safe deposit company.

It is a long room below the level of the street.

The walls are lined with metal drawers, fastened by locks of the most
approved pattern.

The drawers near the floor are the largest. They are, perhaps, a foot
square, as seen when closed. Near the top of the room they are much
smaller.

A movable metal step-ladder stands ready for the convenience of those
who wish to reach the boxes on the upper tiers.

The space in the middle of the room is railed off, and there sits a
guard day and night.

"This is ours," said the colonel, advancing toward one of the larger
drawers. "I placed the diamond clasp on the very top of the pile of
jewels within. It was in a case of its own."

Nick turned to speak to the officer in charge.

He questioned him regarding the possibility of any person taking
anything from the boxes. He asked especially about the custody of Mrs.
Pond's jewels.

"Colonel Richmond and Mrs. Pond have the two keys necessary for opening
the drawer," said the official.

"Yes," said Colonel Richmond, speaking over his shoulder to Nick. "I
told you all about that, and I explained how the second key happened to
be in my possession instead of Mrs. Pond's."

"True," said Nick, apologetically, "that was not what I was asking
about."

At that moment he heard the click of the drawer as it was pulled open.

"Here, wait for me!" he cried. "I should see everything."

As he stepped forward Horace Richmond was just closing the little case
which had held the diamond clasp. The colonel was turning away.

"I am deeply disappointed," he said. "The clasp is there."

As the colonel walked away with bowed head, Nick turned to Horace.

The young man's face was a study. He looked as if he had seen a
grave-yard full of ghosts.

"Nick Carter," he whispered, "this is dreadful."

"What?"

"Hush! I had to fool him. I positively had to or he would have gone
crazy."

He poured the words into Nick's ear in an excited whisper.

"I made him think the clasp was in the box, but it isn't. I substituted
another piece. The clasp is gone. What shall we do?"

He showed Nick the box. It contained nothing. Horace had removed the
piece which he had used in the deception.