enclosure. And thereupon, Fullaway, not to be repressed, burst out with
another exclamation.

"My God, Chilverton!" he cried. "There is Van Koon! And, by all that's
wonderful, Merrifield with him. Now what--"

The New York detective, who was under no orders, and knew no reason why
he should restrain himself, wasted no time in words. Like a flash, he had
leapt from his chair, threaded his way through the surrounding people,
and was after his quarry. And with a muttered exclamation of anger, the
chief rose and followed--and it seemed to Allerdyke that almost at the
same instant a score of men, up to that moment innocently idling and
lounging, rose in company.

"Damn it!" he growled, as he and Appleyard got up. "That chap's going to
spoil everything. What is he after? Confound you, Fullaway!--why couldn't
you keep quiet for a minute? Look there!"

Van Koon had turned and seen Chilverton. So, too, had Van Koon's
companion. So, also, had Miss Slade and the man she was walking with.
That man, too, saw the apparent idlers closing in upon him. For a second
he, and Van Koon, and the other man stared at each other across the
grass; then, as with a common instinct, each turned to flee--and at that
instant Miss Slade, with a truly feminine cry, threw herself upon her
companion and got an undeniably firm grip on his struggling arms.

"This is the Eastbourne Terrace man!" she panted as Allerdyke and
half-a-dozen detectives relieved her. "Get the other two--Van Koon and
Merrifield. Quick!"