"Murdered, Gregg! Good Lord!"

Both were dead, but we could see no marks on either of them.

I found my wits. "Snap, we can't stand like this wholly visible."

I pulled Snap away. We darted a few feet. The light of the tunnel intersection was directly over us. "Not here, Snap! Run!"

Under the curving vacuum tube a little further along, we found shelter. Snap murmured: "The girls went past here. But which way, Gregg?"

As though I knew!

I felt at that moment, under the shirt against my skin, the anode of my audiphone tingling. A receiving signal! In the gloom, I could see Snap's white face as he watched me bring it out.

We heard a tiny microphonic voice, Anita's voice.

"Colonel Halsey. Yes I have the location. Lafayette 4—East corridor, lowest level. A descending entrance. Don't you speak again; I've only a minute! Venza safe—but send help. Something we don't understand—a strange mechanism here."

Then Halsey's interrupting voice. "Anita, escape! You and Venza!"