"The black devils, it was, with one of their invisible ships."

The gas has already put everyone to sleep, so he goes into the ship, still invisible, and melts open the safe.

It'll be simple for them to send out a radio beam and touch our invisible ship with it.

The peculiar condition we reach in the case of the invisible ship is different.

Instead it struck the invisible ship on its far side.

About you having been on Mars, in a strange, invisible ship.

Who is out here in an invisible ship with locator devices?

"What was the fleet commander talking about, an 'invisible ship'?"

Even invisible ships would have to become visible on the screens.

Tara's ship now invisible to the south of us!