"The hidden ones stayed to keep on working," Ezra says.

These funds have sales fees, albeit hidden ones, that reduce returns over time.

There are few of the hidden ones, and fewer every year.

Yet the visible costs of these programs pale beside their hidden ones.

"The hidden ones are very old," I said after a time.

There weren't more than two or three of those hidden ones in that city of a million.

Most known motives are so suspect these days that I doubt whether the hidden ones are any better.

We'll just have to take the hidden ones as they come.

With one pulse gone, now one of the hidden ones had to come out and into use for hunting.

They brought the phasers and rifles back to him, having missed the hidden ones.