Only one way to find out what she wanted to know.

Only one way to find out what was going on at Court: go and see.

As the old saying goes, only one way to find out.

Only one way to find out whether he could or not.

One way or the other he would soon find out.

Though why he should be involved- Well, only one way to find out.

This way we could find out who those few were.

Either way he should find out what she was thinking.

"What a way to find out what's going on in the back room!"

But one way or another, I'll find out who that man is.