the field, was
in the act of entering a barn-like building which evidently at some
time had formed a portion of a farm. As the distant figure, opening
one of the big doors, disappeared within:

"The place of which Myra has been dreaming!" muttered Cairn.

Certainly, viewed from that point, it seemed to answer, externally, to
the girl's description. The roof was of moss-grown red tiles, and
Cairn could imagine how the moonlight would readily find access
through the chinks which beyond doubt existed in the weather-worn
structure. He had little doubt that this was the place dreamt of, or
seen clairvoyantly, by Myra, that this was the place to which Ferrara
had retreated in order to conduct his nefarious operations.

It was eminently suited to the purpose, being entirely surrounded by
unoccupied land. For what ostensible purpose Ferrara has leased it, he
could not conjecture, nor did he concern himself with the matter. The
purpose for which actually he had leased the place was sufficiently
evident to the man who had suffered so much at the hands of this
modern sorcerer.

To approach closer would have been indiscreet; this he knew; and he
was sufficiently diplomatic to resist the temptation to obtain a
nearer view of the place. He knew that everything depended upon
secrecy. Antony Ferrara must not suspect that his black laboratory was
known. Cairn decided to return to Half-Moon Street without delay,
fully satisfied with the result of his investigation.

He walked rapidly back to where the cab waited, gave the man his
father's address, and, in three-quarters of an hour, was back in
Half-Moon Street.

Dr. Cairn had not yet dismissed the last of his patients; Myra,
accompanied by Miss Saunderson, was out shopping; and Robert found
himself compelled to possess his soul in patience. He paced restlessly
up and down the library, sometimes taking a book at random, scanning
its pages with unseeing eyes, and replacing it without having formed
the slightest impression of its contents. He tried to smoke; but his
pipe was constantly going out, and he had littered the hearth untidily
with burnt matches, when Dr. Cairn suddenly opened the library door,
and entered.

"Well?" he said eagerly.

Robert Cairn leapt forward.

"I have tracked him, sir!" he cried. "My God! while Myra was at
Saunderson's, she was almost next door to the beast! His den is in a
field no more than a thousand yards from the garden wall--from
Saunderson's o