There was no use trying to hide his presence any longer.

I had time to hide my presence and set up means to observe her.

It would be nearly impossible for him to hide his presence from her.

"Couldn't one that was powerful enough hide its presence from you?"

I made no attempt to hide my presence there by leaving the light off.

They'd have no reason to hide their presence from us.

Otherwise, it might not have been so simple a matter to hide their presence.

What, do you want me to hide their presence from him?

Whoever it was, they made no effort to hide their presence.

This once, there was no need for the tribes to hide their presence or position.