I look at the tablet. The top surface says, in flashing red letters, READ ME NOW.

"Later." I glance at the door, shudder, then go into the bathroom. Whoever's got me is clearly not in any hurry, so I might as well take my time and get my head together before I confront them.

The bathrooms in the rehab suites are interchangeable, white ceramic eggs with water and air jets and directionless lighting that can track you wherever you go and drainage ducts and foldaway appliances that live in the walls. I dial the shower up to hot and high and stand under it, shivering with fear, until my skin feels raw and clean.

I've been hacked, and there's nothing I can do about it except jump through whatever hoops they've laid out for me and hope they kill me cleanly at the end or let me go. Resistance, as they say, is futile. If they've hacked my backup so deeply that they can force a new body plan on me, then they can do anything they want. Mess with my head, run multiple copies of me, access my private keys, even make a zombie body and use it to do whatever they want it to do while masquerading as me. If they can wake me up in the A-gate of another rehab apartment, then they've trapped my state vector. I could run away a thousand times, be tortured to death a hundredfold—and I'd still wake up back in that booth, a prisoner once more.

Identity theft is an ugly crime.

Before I leave the bathroom, I take a good look at my new body in the mirror. After all, I haven't seen it before, and I've got a nasty feeling it'll tell me something about the expectations of my captors.

It turns out that I'm orthohuman and female all right, but not obtrusively so. I think I'm probably fifteen centimeters shorter than I was, axisymmetrical, with good skin and hair. It's a pretty good-looking body, but they haven't forced exaggerated sexual characteristics on me—I'm not a doll. I've got wide hips, a narrow waist, breasts that are bigger than I'd have gone for, high cheekbones and full lips, skin that's paler than I like. My new forehead is clear and high, above Western-style blue eyes with no fold—they look oddly round and staring, almost kawaii—and brown hair that's currently plastered across my shoulders. My shoulders? It's that long. Why do I have long hair? My fingernails and toenails are short. I frown. It's oddly inconsistent. I stretch my arms up over my head and get a nasty shock. I'm weak —I've got no upper-body musculature to speak of. I probably couldn't hold a saber at arm's length for half a kilosec without dropping it.

So, in summary, I'm short and weak and unarmed, but cute if your sense of aesthetics centers on old-fashioned body plans. "How reassuring," I snarl at my reflection. Then I go back into the bedroom, sit down, and look at the tablet. READ ME NOW, it says. "Read to me," I tell it, and the words morph into new shapes:

Dear Participant

Thank you for consenting to take part in the Yourdon-Fiore-Hanta experimental polity project. (If you do not recall giving this consent, tap HERE to see the release form you signed after your last backup.) We hope you will enjoy your stay in the polity. We have prepared an orientation lecture for you. The next presentation will be conducted by Dr. Fiore in 1294 seconds. To assist with maintaining the correct setting, please attend wearing the historically authentic costume supplied (see carton under chair). There will be a cheese and wine reception afterward at which you will be given a chance to meet your fellows in the current intake of participants.

I blink. Then I reread the tablet, frantically searching for alternate meanings. I didn't sign that! Did I? Looks like I did—either that or I've been hacked, but my having signed the release is more likely. I tap the link, and it's there in black and white and red, and the sixteen-digit number works when I feed the fingerprint to my netlink. I signed a contract, and it says here I'm committed to living in YFH-Polity under an assumed identity, name of Reeve, for the next . . . hundred megaseconds? Three years? During which time my civil rights will be limited by prior mutual agreement—not extending to my core sentient rights, they're not allowed to torture or brainwash me—and I can't be discharged from my obligation without the consent of the experimenters.

I find myself hyperventilating, as I oscillate between weak-kneed relief that I'm not a victim of identity theft and apprehension at the magnitude of what I've signed up for. They have the right to unilaterally expel me (Well, that's all right, then, I just have to piss them off if I decide I want out) , and they have the right to dictate what body I can live in! It's a ghastly picture, and in among the draconian provisions I see that I also agreed to let them monitor my every action. Ubiquitous surveillance. I've just checked into a dark ages panopticon theme hotel! What can possibly have possessed me to—oh. Buried in the small print is a rider titled "Compensatory Benefits."

Aha.

Firstly, the Scholastium itself guarantees the experimenters against all indemnities and will back any claims. So if they violate the limited rights they've granted me, I can sue them, and they've got nearly infinitely deep pockets. Secondly, the remuneration is very satisfactory. I do a brief calculation and work out that what they've promised to pay me for three Urth years in the rat run is probably enough to see me in comfort for at least thrice that long once I get out.

I begin to calm down. I haven't been hacked; I did this to myself of my own free will, and there are some good sides to the picture. My other self hasn't completely taken leave of his senses. It occurs to me that it's going to be very hard for the bad guys, whoever they are, to get at me inside an experimental polity that's only accessible via a single T-gate guarded by a firewall and the Scholastium's shock troops.

I'm supposed to act in character for the historical period we're pretending to live in, wearing a body that doesn't resemble me, using an alias and a fake background identity, and not discussing the outside world with anyone else in the study. That means any assassin who comes after me is going to start with huge handicaps, like not knowing what I look like, not being allowed to ask, and not being able to take any weapons along. If I'm lucky, the me who isn't in here will be able to take care of business within the next hundred megs, and when I come out and we merge our deltas I'll be home free and rich. And if he doesn't succeed, well, I can see if they'll let me keep this assumed identity when I leave . . .

I pull the carton of clothes out from under the bed and wrinkle my nose. They don't smell bad or anything, but they're a bit odd—historically accurate, the tablet said. There's a strange black tunic, very plain, that leaves my arms and lower legs bare, and a black jacket to wear over it. For footwear there's a pair of shiny black pumps, implying a strongish grav zone, but with weird, pointed toes and heels that converge to a spike three or four centimeters long. The underwear is simple enough, but I take a while to figure out that the filmy gray hose go on my legs. Which, I notice, are hairless—in fact, I've got no hair except on my head. So my body's ortho, but not undomesticated. I shake my head.

The weirdest thing of all is that the fabric is dumb—too stupid to repel dirt or eat skin bacteria, much less respond to style updates or carry on a conversation. And the costume comes with no pockets, not even an inconspicuous T-gate concealed in the jacket lining. When did they invent them? I wonder. I'll have to find an outfit with more brains later. I put everything on and check myself out in the bathroom mirror. My hair is going to be a problem—I search the place, but all I can find is an elastic loop to pull it through. It'll have to do until I can cut it back to a sensible length.