"That was when the book came shooting out and fell to the floor."
But after a time the book fell from his hand.
The book fell and he had to pick it up for her.
Even the book she was holding fell from her hands.
The book must have fallen to the floor, but there was no sign of it.
He finally put the books away and in the small hours fell into an exhausted sleep.
Now books fall into piles where they may, and if he has to walk around them, so be it.
The book struck the wall and fell to the floor, open.
The book has fallen out of fashion in recent years.
In any case, the book mustn't fall into enemy hands.