Lost in the Funhouse by John Barth

the nearest ashtray, she replied that she was indeed weary of acrobatics: let him make good his aforementioned promise, one way or another; then she’d see.
    No sooner had she spoken than the false tears ceased; my brother chased her squealing into the kitchen, nor troubled even to ask her leave, but swinish as ever fetched down her tights with the cane-crook and rogered her fair athwart the dish drain, all the while snorting through her whoop and giggle: “You’ll see what you’ll see!”
    Highness, I live in terror of what she’ll see! Nothing is beyond my brother. He has put himself on a diet, avowedly to trim his grossness for her sake; but I perceive myself weaker in consequence, and am half-convinced he means to starve me on the vine, as it were, and absorb me through the bond that joins us. He has purchased medical insurance, playing the family man, and remarks as if idly on its coverage of massive skin grafts; for all I know he may be planning to install me out of sightinside him by surgical means. I don’t eat; I daren’t sleep. Thalia, my hope and consolation—why has she forsaken me?
    If indeed she has. For a curious fancy has taken me of late, not impossibly the figment of a mind deranged for want of love (and rest, and sustenance): that Thalia is less simple than she appears. I suspect, in fact, or begin to … that there are two Thalias! Don’t mistake me: not two as Chang and Eng were two, or as my brother and I are two; not one Thalia joined to another—but a Thalia
within
a Thalia, like the dolls-within-dolls Your Majesty’s countrymen and neighbors fashion so cleverly: a Thalia incarcerate in the iron maiden my brother embraces!
    I first observed her not long after that fell birthday. No moraler for all his protestations, my brother has devised for our next performance a new stunt based on an old lubricity, and to “get the hang of it” (so he claims) sleeps now arsyturvy with his “fiancée,” like shoes in a box or the ancient symbol for Yang and Yin. Sometimes she rests her head on his knees, and thus it happened, late one night, that when I looked down upon the Thalia who’d betrayed me, I found her looking back, sleepless as I, upside down in the first spring moonlight. Yet lo, it was not the same Thalia! Her face—I should say, her sister’s face—was inverted, but I realized suddenly that her eyes were not; it was a different woman, a stranger, who regarded me with upright, silent stare through the other’s face. I perspired with dismay—my first experience of sweat. Luckily my brother slept, a-pitch with dreams. There was no mistaking it, another woman looked out at me from behind that mask: a prisoner like myself, whose gaze remained level and detached however her heartless warden grinned and grimaced. I saw her the next night and the next, earnest, mute; by day she disappears in the other Thalia; I live only for the night, to rehearse before her steadfast eyes the pity and terror of our situation. She it is (once separate like myself, it may be, then absorbed by her smirking sister) I now adore—if with small hope and muchapprehension. Does she see me winking and waving, or is my face as strange to her as her sister’s to me? Why does she gaze at me so evenly, as if in unremitting appraisal? Can she too be uncertain of my reality, my love? Too much to bear!
    In any case, there’s little time. “Thalia” grows restive; now that she has the upper hand with my brother she makes no bones about her reluctance to go back on the road, her yen for a little farm, her dissatisfaction with his progress in “making a man of himself” and the like. Last night, I swear it, I felt him straining to suck me in through our conjunction, and clung to the sheets in terror. Momently I expect him to play some unsuspected trump; have at me for good and all. When he does, I will bite through the tie that binds us and so kill us both. It is a homicide God will forgive, and my beloved will at