rd answered these two questions readily.

"I'm here because I happen to be Mr. Allerdyke's London representative,"
he said. "This gentleman is a very highly placed official of the Criminal
Investigation Department."

Miss Slade, having composed herself, favoured the chief with a deliberate
inspection.

"Oh! in that case," she remarked, "in that case, I suppose I had better
satisfy your curiosity. That is," she continued, turning to Rayner, "if
Mr. Rayner thinks I may?"

"I was going to suggest it," answered Rayner. "Let's sit down and tell
them all about it."

The party of six went across to the quiet spot which the chief had
indicated, and Fullaway and Appleyard obligingly arranged the chairs in
a group. Seated in the midst and quite conscious that she was the
centre of attraction in several ways, Miss Slade began her explanation
of the events and mysteries which had culminated in the recent
sensational event.

"I daresay," she said, looking round her, "that some of you know a great
deal more about this affair than I do. What I do know, however, is
this--the three men who have just been removed are without doubt the
arch-spirits of the combination which robbed Miss Lennard, attempted to
rob Mr. James Allerdyke, possibly murdered Mr. James Allerdyke, and
certainly murdered Lydenberg, Lisette Beaurepaire, and Ebers. Van Koon is
an American crook, whose real name is Vankin; Merrifield, as you know, is
Mr. Delkin's secretary; the other man is one Otto Schmall, a German
chemist, and a most remarkably clever person, who has a shop and a
chemical manufactory in Whitechapel. He's an expert in poison--and I
think you will have some interesting matters to deal with when you come
to tackle his share. Well, that's plain fact; and now you want to know
how I--and Mr. Rayner--found all this out."

"Chiefly you," murmured Rayner, "chiefly you!"

"You had better let your minds go back to the morning of the 13th May
last," continued Miss Slade, paying no apparent heed to this
interruption. "On that morning I arrived at Mr. Fullaway's office at my
usual time, ten o'clock, to find that Mr. Fullaway had departed
suddenly, earlier in the morning, for Hull. I at once guessed why he had
gone--I knew that Mr. James Allerdyke, in charge of the Princess
Nastirsevitch's jewels, was to have landed at Hull the night before, and
I concluded that Mr. Fullaway had set off to meet him. But Mr. Fullaway
has a bad habit of leaving letters and t