saw you and that other man--Mr. Sullivan, I then knew him to
be--step into the light. I saw he was going to hit you, and I raised
the window and called. I wanted to ask you to see who the second man
was--the one who looked so much like my father. I called, but you
didn't seem to hear."

"I heard you," replied Larry, "but I couldn't stop. I wanted to take
after the man--the same man you were suspicious of. I traced him
through the park."

"Did you find him? Who is he? Where is he? Is he--is he? Oh, Larry,
don't keep me in suspense----"

"I'm sorry to have to tell you he isn't your father," Larry replied,
gently, as he saw the girl's distress. "But I think he knows where
your father is. He goes by the name of Mah Retto, and I helped save
him from the wreck of a vessel on the Jersey coast. See, I found
this in his room, a little while before he disappeared," and he held
out to Grace the torn envelope with her name on it.

"My father's writing!" she exclaimed.

Larry heard some one descending the stairs and coming toward the
library.

CHAPTER XXIII

CAPTAIN TANTRELLA ARRIVES

"Grace! What is the matter?" exclaimed a woman's voice, and looking
up Larry saw Mrs. Potter.

"Nothing, mother," replied the girl. "This is Mr. Larry Dexter. He
just brought me some news. Oh, mother, that wasn't papa we saw out
in the street!"

"I knew it, dear, as soon as I saw his face."

Larry felt rather uncomfortable, for Mrs. Potter and Grace showed
signs of emotion.

"I was telling your daughter," he said to Mrs. Potter, "that I think
I have located the man who knows where your husband is."

"Oh, I hope you have," exclaimed Mrs. Potter. "This suspense is
awful. Who is he? Where is he?"

Larry related the circumstances of his chase after Retto, telling
how he had located the man at the hotel.

"I'll go and see him to-morrow," he said, "before he has a chance to
get away. He does not suspect that I know where he is."

"Why not go now?" asked Mrs. Potter.

"I'm afraid he would see no one to-night. It is very late, and he
would suspect something if any one sent up word they wanted to see
him. He would at once connect it with the chase I had after him. But
I think I fooled him. I am sure he can clear up this matter in a
short time, once I get into conversation with him."

"I'll go with you," said Grace, with sudden energy. "I will make him
tell where my father is."

Larry thought he could best deal with Retto alone