That notion would not have occurred to him but for the events of the previous night.

Brian looked at her as though the notion had never occurred to him.

The notion of searching his office never occurred to me.

It wasn't the first time that notion had occurred to her.

His brow raised, as if the notion had never occurred to him.

Imagine what would happen if we allowed people to have children every time the notion occurred to them.

My spirits rose as a new notion occurred to me.

Then a notion occurred to me, a perfect way to do my bit without laying myself open to her.

The notion appears toward the end of the book and then does not occur again.

He wondered whether the same notion had occurred to her.