All evidence points that way…Alert Janeite Hidie wrote to tell us that Neil Gaiman’s first book, Neverwhere, contains a few passages referring to Mansfield Park. We found the references on page 40 and 41 of the edition linked (thank you, Amazon Search Inside):
She went over to the bookshelf in the corner of the bedroom, found a copy of Mansfield Park Richard had not previously known that he possessed, and went into the living room.
…and on page 337:
Door was sitting on the edge of her bed, reading a copy of Mansfield Park that Richard was certain the friars had not previously known that they had.
We’re sensing a leitmotif here. 😉