Last time, the remarks about Sherlock, with their veiled threats and hidden implications about Cal and Sherlock, made his blood run cold.

Now, with that party a hundred years in the past, and Cal having dealt with so much worse -

(cool fingers on the pulse in his throat, for just a second)

- he laughs. It's not much more than a huff of air, but it's definitely a laugh, and the smile lingers as he raises the cigarette to his mouth again.