Is fleur macabre (TEWAC, p. 203) the name of a real plant?

I'd like them to have an encounter - with someone who you would expect in a dreamland setting, but not in the 'real' WFRP world. Do you have suggestions for a fun encounter? How about having them join an irrealistic tea party with the Hatter, the Pflugzeit Hare and Sigmar of Reiksdorf who ruminate ...

Is there any good material written - official or fan-made - about criminal gangs in Altdorf (or other quasi-Renaissance cities)? I am not a fan of Warhammer novels. As such I have read just a few. However, I must admit I have quite enjoyed "Zavant" by Gordon Rennie. The first story (i.e. ...