Legally.
If you mean the first series, then the book is A Dangerous Path. If you mean the second series, then the book is Twilight. Lastly, if you mean the third series, then the book is Long Shadows.
If you mean: to book, it is 'booked'If you mean: the object book, there is no past tense for that because it is not a verb.
un cahier is an exercise book and livre is a reading book
exercise book mean exercice du livre
a review of a book
it is telling about a book
Picture that was drawn in a book
parsis book means
By 'it' do you mean the book "It" by Stephen King? And in that case it is a horror book.
It means that the BIBLE isn't just an ordinary book, though it is the book.
The Good Book = The Bible
it means what you think of a book