Fanchon's Book was published in 1972 by Venus Library, a U.S. publishing house originally specializing in re-prints of vintage pornography, in particular American clandestine erotica from the 1920s and 1930s, that also published contemporary S/M stories. There is actually a very interesting story behind Venus Library - you can read more about it here. Fanchon's Book is apparently one of its finer releases. I was unable to find anything else by "Zane Pella", but the book's copyright is held by Gilbert Fox, who wrote a number of soft-porn books throughout the 1960s under pseudonyms Dallas Mayo and Kimberly Kemp.
Fanchon's Book is first and foremost a story of lesbian domination and submission, with lady-to-maid transformation, sadly, rather periphery to the narrative. Still there are some scenes that make it worthwhile, such as this one close to the end:
Amusing-hah!-the ingenious imp had more creativity in her little pinkie that I had in my entire plenum; oh, the whimsical concepts, the extravagant improvisations! She even went shopping and bought a maid's outfit for me, the sexy kind with the low-cut bodice and high-cut skirt (two sizes tight and I had to use a waist-cincher; perfectly scandalous!) and I couldn't figure out where she had gotten such a droll notion, but I was just infatuated old fool enough to put it on and wear it and love it and practically live in it; I curtsied to my exacting mistress and lit her cigarettes and served her breakfast in bed and brushed her hair and bathed and dried and powdered and perfumed her beautiful body and bowed to her demand for a daily manicure and pedicure-ah, what joy to kneel at Miss Kristi's feet and paint her toenails and then kiss them, one by one, in the hope that I might be permitted further liberties-and only after our sweet holiday-at-home suffered its eventual disruption (the return of Oliver, alas!) did I realize that throughout my tenure and observance of a maidservant's rank and customs and duties I hadn't once thought about the "acting game." Not once-even though I was actually playing it.
The story is too long to fully re-publish it this blog, but you can find the whole thing here.