spy-sprays

Updated: June 24, 2025

"They can't see us our ether wall is still up and their spy-sprays can't get through it from the outside, you know. They're working from blue-prints, and they'll probably take your desk next," and even as they bounded toward the door, now become the outer seal of an airlock, the annihilating ray tore through the space which they had just quitted in their flight.

E. E. (Edward Elmer) Smith - Triplanetary