signing the devil's book is to join the legion under Satan's command. It might be considered selling your soul to the devil, however there is no direct implication of the agreement in the phrase "signing the devil's book".
"Singing the devil's book" is an idiom that typically means someone is behaving in a wicked or immoral way in order to achieve their goals. It implies that the person is aligning themselves with negative or evil forces in order to succeed.
book
No,Not really
A high number and/or a G (Greek) on your arm meant you were chosen (meant to die).
spring
Singing is mentioned in 30 verses of the Book of Mormon.
Yes
She was 17
It is Fayge's and Shmuel's wedding
9
You probably meant "singing."
Picture Book of Devils, Demons and Witchcraft, by Ernst and Johanna Lehner
David Clarkson NJ DEvils