According to Humbert Humbert (the narrator and main character in VN's novel Lolita, 1955), among the pseudonyms he has toyed with before he hit on a particularly apt one was “Mesmer Mesmer:”
This then is my story. I have reread it. It has bits of marrow sticking to it, and blood, and beautiful bright-green flies. At this or that twist of it I feel my slippery self eluding me, gliding into deeper and darker waters than I care to probe. I have camouflaged what I could so as not to hurt people. And I have toyed with many pseudonyms for myself before I hit on a particularly apt one. There are in my notes “Otto Otto” and “Mesmer Mesmer” and “Lambert Lambert,” but for some reason I think my choice expresses the nastiness best.
When I started, fifty-six days ago, to write Lolita, first in the psychopathic ward for observation, and then in this well-heated, albeit tombal, seclusion, I thought I would use these notes in toto at my trial, to save not my head, of course, but my soul. In mind-composition, however, I realized that I could not parade living Lolita. I still may use parts of this memoir in hermetic sessions, but publication is to be deferred.
For reasons that may appear more obvious than they really are, I am opposed to capital punishment; this attitude will be, I trust, shared by the sentencing judge. Had I come before myself, I would have given Humbert at least thirty-five years for rape, and dismissed the rest of the charges. But even so, Dolly Schiller will probably survive me by many years. The following decision I make with all the legal impact and support of a signed testament: I wish this memoir to be published only when Lolita is no longer alive.
Thus, neither of us is alive when the reader opens this book. But while the blood still throbs through my writing hand, you are still as much part of blessed matter as I am, and I can still talk to you from here to Alaska. Be true to your Dick. Do not let other fellows touch you. Do not talk to strangers. I hope you will love your baby. I hope it will be a boy. That husband of yours, I hope, will always treat you well, because otherwise my specter shall come at him, like black smoke, like a demented giant, and pull him apart nerve by nerve. And do not pity C. Q. One had to choose between him and H. H., and one wanted H. H. to exist at least a couple of months longer, so as to have him make you live in the minds of later generations. I am thinking of aurochs and angels, the secret of durable pigments, prophetic sonnets, the refuge of art. And this is the only immortality you and I may share, my Lolita. (2.36)
“Mesmer Mesmer” seems to hint at Franz Anton Mesmer (a German physician with an interest in astronomy, 1734-1815). In his story Pikovaya dama ("The Queen of Spades," 1833) Pushkin mentions Mesmerov magnetizm (Mesmer's magnetism):
Германн трепетал, как тигр, ожидая назначенного времени. В десять часов вечера он уж стоял перед домом графини. Погода была ужасная: ветер выл, мокрый снег падал хлопьями; фонари светились тускло; улицы были пусты. Изредка тянулся Ванька на тощей кляче своей, высматривая запоздалого седока. Германн стоял в одном сертуке, не чувствуя ни ветра, ни снега. Наконец графинину карету подали. Германн видел, как лакеи вынесли под руки сгорбленную старуху, укутанную в соболью шубу, и как вослед за нею, в холодном плаще, с головой, убранною свежими цветами, мелькнула ее воспитанница. Дверцы захлопнулись. Карета тяжело покатилась по рыхлому снегу. Швейцар запер двери. Окна померкли. Германн стал ходить около опустевшего дома: он подошел к фонарю, взглянул на часы, — было двадцать минут двенадцатого. Он остался под фонарем, устремив глаза на часовую стрелку и выжидая остальные минуты. Ровно в половине двенадцатого Германн ступил на графинино крыльцо и взошел в ярко освещенные сени. Швейцара не было. Германн взбежал по лестнице, отворил двери в переднюю и увидел слугу, спящего под лампою, в старинных, запачканных креслах. Легким и твердым шагом Германн прошел мимо его. Зала и гостиная были темны. Лампа слабо освещала их из передней. Германн вошел в спальню. Перед кивотом, наполненным старинными образами, теплилась золотая лампада. Полинялые штофные кресла и диваны с пуховыми подушками, с сошедшей позолотою, стояли в печальной симметрии около стен, обитых китайскими обоями. На стене висели два портрета, писанные в Париже m-me Lebrun. Один из них изображал мужчину лет сорока, румяного и полного, в светло-зеленом мундире и со звездою; другой — молодую красавицу с орлиным носом, с зачесанными висками и с розою в пудреных волосах. По всем углам торчали фарфоровые пастушки, столовые часы работы славного Leroy, коробочки, рулетки, веера и разные дамские игрушки, изобретенные в конце минувшего столетия вместе с Монгольфьеровым шаром и Месмеровым магнетизмом. Германн пошел за ширмы. За ними стояла маленькая железная кровать; справа находилась дверь, ведущая в кабинет; слева, другая — в коридор. Германн ее отворил, увидел узкую, витую лестницу, которая вела в комнату бедной воспитанницы... Но он воротился и вошел в темный кабинет.
Hermann trembled like a tiger, as he waited for the appointed time to arrive. At ten o'clock in the evening he was already in front of the Countess's house. The weather was terrible; the wind blew with great violence; the sleety snow fell in large flakes; the lamps emitted a feeble light, the streets were deserted; from time to time a sledge, drawn by a sorry-looking hack, passed by, on the look-out for a belated passenger. Hermann was enveloped in a thick overcoat, and felt neither wind nor snow. At last the Countess's carriage drew up. Hermann saw two footmen carry out in their arms the bent form of the old lady, wrapped in sable fur, and immediately behind her clad in a warm mantle, and with her head ornamented with a wreath of fresh flowers, followed Lisaveta. The door was closed. The carriage rolled away heavily through the yielding snow. The porter shut the street-door; the windows became dark. Hermann began walking up and down near the deserted house; at length he stopped under a lamp, and glanced at his watch: it was twenty minutes past eleven. He remained standing under the lamp, his eyes fixed upon the watch, impatiently waiting for the remaining minutes to pass. At half-past eleven precisely, Hermann ascended the steps of the house, and made his way into the brightly-illuminated vestibule. The porter was not there. Hermann hastily ascended the staircase, opened the door of the ante-room and saw a footman sitting asleep in an antique chair by the side of a lamp. With a light firm step Hermann passed by him. The drawing-room and dining-room were in darkness, but a feeble reflection penetrated thither from the lamp in the ante-room. Hermann reached the Countess's bedroom. Before a shrine, which was full of old images, a golden lamp was burning. Faded stuffed chairs and divans with soft cushions stood in melancholy symmetry around the room, the walls of which were hung with China silk. On one side of the room hung two portraits painted in Paris by Madame Lebrun. One of these represented a stout, red-faced man of about forty years of age in a bright-green uniform and with a star upon his breast; the other—a beautiful young woman, with an aquiline nose, forehead curls and a rose in her powdered hair. In the corners stood porcelain shepherds and shepherdesses, dining-room clocks from the workshop of the celebrated Leroy, bandboxes, roulettes, fans and the various playthings for the amusement of ladies that were in vogue at the end of the last century, when Montgolfier's balloons and Mesmer's magnetism were the rage. Hermann stepped behind the screen. At the back of it stood a little iron bedstead; on the right was the door which led to the cabinet; on the left—the other which led to the corridor. He opened the latter, and saw the little winding staircase which led to the room of the poor companion. . . . But he retraced his steps and entered the dark cabinet. (Chapter III)
Waiting for the appointed time to arrive, Pushkin's Hermann trembles like a tiger. Describing his second road trip with Lolita across the USA, Humbert mentions Felis tigris goldsmithi (a tiger in Oliver Goldsmith's poem The Deserted Village, 1770):
I remember as a child in Europe gloating over a map of North America that had “Appalachian Mountains” boldly running from Alabama up to New Brunswick, so that the whole region they spanned - Tennessee, the Virginias, Pennsylvania, New York, Vermont, New Hampshire and Maine, appeared to my imagination as a gigantic Switzerland or even Tibet, all mountain, glorious diamond peak upon peak, giant conifers, le montagnard émigré in his bear skin glory, and Felis tigris goldsmithi, and Red Indians under the catalpas. That it all boiled down to a measly suburban lawn and a smoking garbage incinerator, was appalling. Farewell, Appalachia! Leaving it, we crossed Ohio, the three states beginning with “I,” and Nebraska - ah, that first whiff of the West! We traveled very leisurely, having more than a week to reach Wace, Continental Divide, where she passionately desired to see he Ceremonial Dances marking the seasonal opening of Magic Cave, and at least three weeks to reach Elphinstone, gem of a western State where she yearned to climb Red Rock from which a mature screen star had recently jumped to her death after a drunken row with her gigolo. (2.16)
According to John Ray, Jr. (the author of the Foreword to Humbert's manuscript), Mrs. “Richard F. Schiller” (Lolita's married name) died in childbed, giving birth to a stillborn girl, on Christmas Day 1952, in Gray Star, a settlement in the remotest Northwest:
For the benefit of old-fashioned readers who wish to follow the destinies of the “real” people beyond the “true” story, a few details may be given as received from Mr. “Windmuller,” or “Ramsdale,” who desires his identity suppressed so that “the long shadow of this sorry and sordid business” should not reach the community to which he is proud to belong. His daughter, “Louise,” is by now a college sophomore, “Mona Dahl” is a student in Paris. “Rita” has recently married the proprietor of a hotel in Florida. Mrs. “Richard F. Schiller” died in childbed, giving birth to a stillborn girl, on Christmas Day 1952, in Gray Star, a settlement in the remotest Northwest. “Vivian Darkbloom” has written a biography, “My Cue,” to be publshed shortly, and critics who have perused the manuscript call it her best book. The caretakers of the various cemeteries involved report that no ghosts walk.
But it seems that, actually, Lolita dies of ague on July 4, 1949, in the Elphinstone hospital. Everything what happens after her sudden death (Lolita's escape from the hospital, Humbert's affair with Rita, Lolita's marriage and pregnancy, and the murder of Clare Quilty) was invented by Humbert Humbert (whose "real" name is John Ray, Jr.).