to his
head, had managed to free himself from his shackles and had floated to
the surface of the water. As he came up he swam to the piles of the dock
just as several boatmen saw him and hurried to his aid.

They heard the screams of Eva, and all started running up the dock, but
not in time to capture the Automaton, who, warned by the emissaries,
crashed through the side of the dock house nearest the shore and
escaped.

A moment later Locke, searching through the piles of boxes, bales, and
crates, found Eva, just recovering from her fright, and in the joy of
having saved her by his timely return forgot, for the moment, to pursue
the terrible villain, who managed to reach a waiting closed car and was
whisked away.

Thus it was that after their return to Brent Rock, on the following day
Eva was ministering to her father, still hopelessly insane through the
failure to discover the antidote to the madness.

While Eva was engaged in her ministrations up-stairs Locke was finishing
some experiment in his laboratory. Down-stairs, Balcom had just arrived
in the hall, where he was met by Zita with a report of what had happened
the day before.

"Tell it to me in the strong-room while I place this package there,"
Balcom whispered, indicating the package which he had brought.

Together Balcom and Zita descended to the cellar and made their way to
the Graveyard of Genius as Zita poured forth her story, unmindful of the
fact that the butler had seen them go down and was watching very
skeptically. In the Graveyard Balcom unwrapped a small model of a motor
and placed it on the shelf.

Eva, having left her father, came upon Locke in the hall, and there they
stood talking for a moment, when the butler approached apologetically.

"Begging your pardon, Miss Brent," he reported, "but I just saw Mr.
Balcom go down to the strong-room with Miss Zita, and I thought you
might like to know."

"Thank you," nodded Eva, dismissing the butler and trying to show no
concern in the matter.

But Locke shot a quick glance at her as the servant left, and it was
evident that both felt the same suspicion, for Locke immediately excused
himself and hurried down-stairs.

In the Graveyard Balcom and Zita were talking in subdued tones as Zita
whispered.

"I suppose you know," she nodded, "that before Mr. Brent went mad he
wrote a confession with a list of these inventions which International
Patents has suppressed?"

Balcom could scarcely concea