Nick went to the telephone, and, calling up Mr. Sanborn at his home address, finally got into communication with him.

Asking Mr. Sanborn whether he would remain at his home for a short time, he received the answer that the millionaire would remain at his house until noon, when he would leave it only to go to the church to be present at the marriage ceremony of his daughter.

Nick told him that he had a matter of some possible interest to Mr. Sanborn, of which he could not speak over the wire, but that he would call upon him at once.

Asking Chick to accompany him, the famous detective immediately set out for the palatial residence of the rich man, which fronted on Central Park.

Reaching the house, the two detectives were immediately taken to a room on the first floor, which Mr. Sanborn used as his working room when at home.

“I don’t know,” said Nick to the millionaire, “but that I am bringing a mare’s nest to you. This came to me in the morning’s mail. I know no more than that.”

He passed the letter he had received to Mr. Sanborn.

That gentleman, after reading it carefully, laid it down, saying:

“Well, it tells some truths. That I’m a friend of yours, Mr. Carter, is one truth, and the other is, that the presents are many and, in the main, pretty valuable. My little girl has been greatly favored by my friends and associates in business. What is your opinion about it?”

“It seems to be a note of warning,” replied Nick, “and I suppose prudence suggests that you should take measures, at all events, to protect the presents.”