Birthday Wishes From Verce of Hexperience

Pal Silent Porn Star (*) sent me a charming belated birthday gift -- delivered by Hang Fire Books (also *).

(Well, the US post delivered it, but Will sent it. )

It's a delightfully puzzling note on the back of a Sunshine Biscuits invoice sheet:

Dear Reader:

Once that thing has slowed down, this book - or any other, will never serve as a rejuvenator. Let the dead rest in peace.

Signed,
Verce of Hexperience

Let the guesses as to meaning commence.

(Possible hints lay in where it was found...? At least I like to think so! *wink*)