[Vermouth is not about to tell the detective that she only just arrived. It would put her at a disadvantage, assuming he hadn't already deduced it himself.]

It can't be helped. My usual source of information seems unresponsive.

[Which is a subtle hint that he won't have to worry about any other Organization members (at least for now). Her mouth quirks into a more playful grin.]

Besides, asking you would be quicker. Or have the culprits stumped the Great Detective?