Now J (as I shall call her) is really terrifying, for she's invisible. Against the black curtains her head and hands float in sinister disconnection, like puppets controlled by separate strings. There are baby spotlights in the ceiling, which illuminate in deep chiaroscuro her gray hair, her lined face, her rather macabre grin, for her teeth seem to be one fused ribbon of steel. She stepped out against the white wall, a woman-shaped hole, a black cardboard cut-out; with a crooked, charming smile she clapped her hand to her mouth, either taking something out or putting something in-see? Real teeth. Those disbodied, almost crippled hands clasped themselves. She sat on her black leather couch and vanished again; she smiled and dropped fifteen years; she has silver hair, not gray, and I don't know how old she is. How she loves us! She leans forward and croons at us like Garbo. Jeannine has sunk down into a collection of glass plates that passes for a chair; her cup and spoon make a tiny, spineless chattering. Janet is erect and ready for anything.
"I'm glad, so glad, so very glad," says J softly. She doesn't mind Jeannine's being a coward. She turns the warmth of her smile on Jeannine the way none of us has ever been smiled at before, a dwelling, loving look that would make Jeannine go through fire and water to get it again, the kind of mother-love whose lack gets into your very bones.
"I am called Alice Reasoner," says J, "christened Alice-Jael; I am an employee of the Bureau of Comparative Ethnology. My code name is Sweet Alice; can you believe it?" (with a soft, cultivated laugh) "Look around you and welcome yourselves; look at me and make me welcome; welcome myself, welcome me, welcome I," and leaning forward, a shape stamped by a cookie-cutter on to nothing, with pleasant art and sincere gestures, Alice-Jael Reasoner told us what you have no doubt guessed long, long ago.
III
(Her real laugh is the worst human sound I have ever heard: a hard, screeching yell that ends in gasps and rusty sobbing, as if some mechanical vulture on a gigantic garbage heap on the surface of the moon were giving one forced shriek for the death of all organic life. Yet J likes it. This is her private laugh.
Alice is crippled, too; the ends of her fingers (she says) were once caught in a press and are growing cancerous-and to be sure, if you look at them closely you can see folds of loose, dead skin over the ends of her fingernails. She has hairpin-shaped scars under her ears, too.
IV
Her pointed fingernails painted silver to distract the eye, Alice-Jael plays with the window console: the East River clouds over to reveal (serially) a desert morning, a black lava beach, and the surface of the moon. She sat, watching the pictures change, tapping her silver nails on the couch, herself the very picture of boredom. Come up close and you'll see that her eyes are silver, most unnatural. It came to me that we had been watching this woman perform for half an hour and had given not one thought to what might be happening around us or to us or behind us. The East River?
"An artist's conception," she says.)
V
"I am," says Jael Reasoner, "an employee of the Bureau of Comparative Ethnology and a specialist in disguises. It came to me several months ago that I might find my other selves out there in the great, gray might-have-been, so I undertook-for reasons partly personal and partly political, of which more later-to get hold of the three of you. It was very hard work. I'm a field worker and not a theoretician, but you must know that the closer to home you travel, the more power it takes, both to discriminate between small degrees of difference and to transport objects from one universe of probability into another.
"If we admit among the universes of probability any in which the laws of physical reality are different from our own, we will have an infinite number of universes. If we restrict ourselves to the laws of physical reality as we know them, we will have a limited number. Our universe is quantized; therefore the differences between possible universes (although very small) must be similarly quantized, and the number of such universes must be finite (although very large). I take it that it must be possible to distinguish the very smallest differences-say, that of one quantum of light-for otherwise we could not find our way to the same universe time after time, nor could we return to our own.