They picked their way across the street to the terrace of the Taverne
Royale, which was almost deserted at that hour, and sat down at one of
the little tables, well back from the pavement, in a corner.

"Is it fair," queried Captain Stewart--"is it fair, as a rival
investigator, to ask you what success you have had?"

Ste. Marie laughed rather ruefully, and confessed that he had as yet no
success at all.

"I've just come," said he, "from pricking one bubble that promised well,
and Hartley is up in Montmartre destroying another, I fancy. Oh, well,
we didn't expect it to be child's play."

Captain Stewart raised his little glass of dry vermouth in an
old-fashioned salute and drank it.

"You," said he--"you were--ah, full of some idea of connecting this man,
this Irishman O'Hara, with poor Arthur's disappearance. You've found
that not so promising as you went on, I take it."

"Well, I've been unable to trace O'Hara," said Ste. Marie. "He seems to
have disappeared as completely as your nephew. I suppose you have no
clews to spare? I confess I'm out of them at the moment."

"Oh, I have plenty," said the elder man. "A hundred. More than I can
possibly look after." He gave a little chuckling laugh. "I've been
waiting for you to come to me," he said. "It was a little ungenerous,
perhaps, but we all love to say, 'I told you so.' Yes, I have a great
quantity of clews, and of course they all seem to be of the greatest and