How you could have passed unseen by them, I cannot understand.

Down there he thought they had no way of passing unseen.

Nor was their any practical way to pass unseen on the barren hills they'd already come through.

Had it not been crouched on the rock in the open, it would have passed unseen.

He had to use great caution to pass unseen - they lay so close together.

"Or does some god wish us to pass through the city unseen?"

In daytime a rat could not cross this island and pass unseen.

They speak of them wrapping themselves in shadow to pass unseen.

A boat that would pass unseen under other boats, take men wherever they needed to go.

But we passed unseen from Willow and once more entered the forest.