...but is there any evidence of vampires being used in stories or mythology in the His Dark Materials -verse?

I'm claiming this (http://www.fanfiction.net/s/3871625/1/HarryPotterandaVampires_Fight) off the Wiki for that grassroots mission challenge of hS's, and set it before Teek's partner change to avoid any underlying plot-threads.

Am just unsure of whether she's going to have to explain vampires to Crebaina or not, or whether it can be taken for granted that Lyra's world is similar enough to ours that such things are shared.

Of all the things you thought you'd never have to question of Philip Pullman...