We swiftly flew back to our base.

It decided Grantline. For an hour past Snap and I had been urging our plan to use the gravity platforms. To remain inactive was sure defeat now. Even if our buildings did not explode—if we thought to huddle in them, helmeted in the failing air—then Miko could readily ignore us and proceed with his loading of the treasure under our helpless gaze. He could do that now with safety—if we refused to accept the challenge—for we could not fire through the windows and must go out to meet this threat.

To remain defensive would end inevitably in our defeat. We all knew it now. The waiting game was Miko's—not ours.

The success of our attack upon the distant isolated projectors, heartened us. Yet it was a desperate offensive upon which we decided!

We prepared our little expedition at the larger of the exit ports. Miko's zed-ray was watching all our interior movements. We made a brave show of activity in our workshop with abandoned ore carts which were stored there. We got them out, started to recondition them.

It seemed to fool Miko. His zed-ray clung to the workshop, watching us. And at the distant port we gathered the platforms, shields, helmets, bombs, and a few hand projectors.

There were six platforms—three of us upon each. It left four people to remain indoors.

I need not describe the emotion with which Snap and I listened to Venza and Anita pleading to be allowed to accompany us. They urged it upon Grantline, and we took no part. It was too important a decision. The treasure—the life or death of all these men—hung now upon the fate of our venture. Snap and I could not intrude our personal feelings.

And the girls won. Both were undeniably more skillful at handling the midget platforms than any of us men. Two of the six platforms could be guided by them. That was a third of our little force! And of what use to go out and be defeated, leaving the girls here to meet death almost immediately afterward?

We gathered at the port. A last minute change made Grantline order six of his men to remain to guard the buildings. The instruments, the Erentz system, all the appliances had to be attended.