“We’ll come down again.”

“Ssh!” I said suddenly; “what’s that?”

We listened. At first it was an indistinct murmur, and then one picked out the clang of a gong. “They must think we are mooncalves,” said I, “to be frightened at that.”

“They’re coming along that passage,” said Cavor.

“They must be.”

“They’ll not think of the cleft. They’ll go past.”

I listened again for a space. “This time,” I whispered, “they’re likely to have some sort of weapon.”

Then suddenly I sprang to my feet. “Good heavens, Cavor!” I cried. “But they will ! They’ll see the fungi I have been pitching down. They’ll⁠—!”