The identity of that torchbearer is usually kept secret until the last moment.

So she had kept them hidden until the last moment.

And I had kept them, though without any design of my own, until the moment when they would prove most useful.

They knew how to keep still until the proper moment to move.

You must keep out of sight with the sleigh, until the last moment.

Delgado had kept his radar dark until the last moment.

Which must be kept a secret until the last moment.

We should keep under cover until the last possible moment.

But where he was brilliant was in his ability to keep a completely open mind until the last moment.

You keep each other alive until the last possible moment.