uite certain that he intended to do as he said, and go straight home.
When he got to the Club, he found a letter there, which caused him to
alter his mind."

"From whom was the letter?"

"Can't you guess," she said impatiently. "From the person, man or
woman, who wanted to see him and reveal this secret about me, whatever
it is. He got the letter at his Club, and went down Collins Street to
meet the writer. At the corner of the Scotch Church he found Mr. Whyte,
and on recognising him, left in disgust, and walked down Russell Street
to keep his appointment."

"Then you don't think he came back."

"I am certain he did not, for, as Brian told you, there are plenty of
young men who wear the same kind of coat and hat as he does. Who the
second man who got into the cab was I do not know, but I will swear
that it was not Brian."

"And you are going to look for that letter?"

"Yes, in Brian's lodgings."

"He might have burnt it."

"He might have done a thousand things, but he did not," she answered.
"Brian is the most careless man in the world; he would put the letter
into his pocket, or throw it into the waste-paper basket, and never
think of it again."

"In this case he did, however."

"Yes, he thought of the conversation he had with the writer, but not of
the letter itself. Depend upon it, we shall find it in his desk, or in
one of the pockets of the clothes he wore that night."

"Then there's another thing," said Calton, thoughtfully. "The letter
might, have been delivered to him between the Elizabeth Street Railway
Station and the Club."

"We can soon find out about that," answered Madge; "for Mr. Rolleston
was with him at the time."

"So he was," answered Calton; "and here is Rolleston coming down the
street. We'll ask him now."

The cab was just passing the Burke and Wills' monument, and Calton's
quick eye had caught a glimpse of Rolleston walking down the left-hand
side. What first attracted Calton's attention was the glittering
appearance of Felix. His well-brushed top hat glittered, his varnished
boots glittered, and his rings and scarf-pin glittered; in fact, so
resplendent was his appearance that he looked like an animated diamond
coming along in the blazing sunshine.

The cab drove up to the kerb, and Rolleston stopped short, as Calton
sprang out directly in front of him. Madge lay back in the cab and
pulled down her veil, not wishing to be recognised by Felix, as she
knew that if he did it wou