turned to the solitary duty-man. I must gain his confidence at once. Anita had laid her helmet aside. She spoke first.

"We were with Set Miko," she said smilingly, "in the wreck of the Planetara. You heard of it? We know where the treasure is."

This duty-man was a full seven feet tall, and the most heavy-set Martian I had ever seen. A tremendous, beetling-browed, scowling fellow. He stood with hands on his hips, his leather-garbed legs spread wide; and as I fronted him I felt like a child. He was silent, glaring down at me as I drew his attention from Anita.

"You speak English? We are not skilled with Martian."

I wondered if at the next time of sleep this fellow would be on duty here. I hoped not; it would not be easy to trick him and find an opportunity to flash a signal. But that task was some hours away as yet; I would worry about it when the time came. Just now I was concerned with Miko and his little band, who at any moment might arrive in sight. If we could persuade this scowling duty-man to turn the projector on them....

He answered me in ready English:

"You are the man Gregg Haljan? And this is the sister of George Prince—what do you want up here?"

"I am a navigator. Brotow wants me to pilot the ship when we advance to attack Grantline."