[HPforGrownups] Re: 12 uses for Dragons Blood

[Amanda Geist]

No: HPFGUIDX 83128

Follow-up with URL for interview where JKR mentions the 12th use of dragon's
blood. I think that's the only one we know. (Thanks to Kelley for finding me
the link):

http://www.the-leaky-cauldron.org/quickquotes/articles/1999/1099-sfchronicle
-chonin.html

Almost at the very end:  "Q: What are the 12 uses for dragon's blood?

-- Kelsey Biggar, age 9

A: I have a very good reason for not telling you -- the movie script writer
wants me to give him that information for the film. But I can say that the
12th use is oven cleaner.

~Amanda, L.O.O.N.