"I wouldn't like getting moved every time I made new friends."

"I suppose. It's not so bad for officers. Especially Engineers. But they only take people who can handle it. Loners."

"Sociopaths," the Commander says softly. Only I hear him. He makes a habit of commenting without elucidating.

"You're a call-up, aren't you?"

"Only to the Fleet. I volunteered for Climbers."

"How are Engineers different?" Navy is a conservative organization. Engineers don't do much engineering. They don't have engines to tinker with. Aboard line ships they still have boatswains.

There's no logical continuity from old-time surface navies.

"They stay with one ship after three apprentice missions. They're all physicists. A ship always has an apprentice aboard."

"The more I hear, the more I wish I'd kept my mouth shut. This looks bleaker all the time."

"One mission? With the Old Man? With CliRon Six? Shit. A cakewalk." He's whispering. The Commander isn't supposed to hear. The set of the Old Man's shoulders says he has. "You can do it standing on your head. You're in the ace survivor squadron. We graduate more people than anybody. Hell, we'll be back groundside before the end of the month."

"Graduate?"

"Make ten. Guys make their ten with us. Hell, we're at the bay already. There she is. In the nine spot."

A whole, combat-ready Climber looks like an antique spoked automobile wheel and tire with a tenliter cylindrical canister where the hub belongs. Its exterior is fletched with antennae, humps, bumps, tubes, turrets, and one huge globe riding high on a tall, leaning vane reminiscent of the vertical stabilizer on supersonic atmosphere craft. Every surface is anodized a Stygian black.

There are twelve Climbers in the squadron. They cling to a larger vessel like a bunch of ticks.