I thought garlic would be a bit obvious, so I went with the onion instead and tried to make a point of them being from the same family - sorry, I think that should be genus (thanks, Magz, for pointing that out).
It's funny - I thought probably everyone knew what was coming and that you were all just being good Top-Hush, Button-Lip folks and saying nothing. When I showed you the close-up of the warden a few pages back, did you not realize he was a vampire?