The answer to this riddle has a hole in the middle, And some have been known to fall in it. In tennis it's nothing, but it can be received, And sometimes a person may win it. Though not seen or heard it may be perceived, Like princes or bees it's in clover. The answer to this riddle has a hole in the middle, And without it one cannot start over.

I think when I started to write The Mysterious Benedict Society that I had that kind of thing in mind - the notion of having to be able to solve puzzles and riddles because enormous stakes rode upon your ability to do that.

Was it worse for him, Reynie wondered, to have felt loved and then rejected? Or was it worse to have always felt alone?

Somhow those Ten Men -- at the time they were called Recruiters, of course -- discovered that Constance had been at the library. Most likely one of their informants saw her come out, because it was on that very day that the brutes showed up and threatened the librarians. Who told them nothing, incidentally.' 'The same thing happened in Holland,' Kate reflected. 'You'd think these guys would learn their lesson -- librarians know how to keep quiet.' 'It helps to ask politely,' said Mr. Benedict

Kate seemed to have doubled in size. She had drawn back her broad shoulders and set her jaw, and something in the stance called to mind the contained ferocity of a lioness. But it was the fierceness in Kate's bright blue eyes that had the most striking effect. The sort of look that made you thankful she wasn't your enemy. "It's not going to be over," Kate said firmly "Until we say so.

The missing aren't missing, they're only departed, All minds keep all thoughts - so like gold - closely guarded.

Children are capable of such open rudeness.