I recently redownloaded my Barnes & Noble library to check for new editions of books. It seems that the author of a three-book omnibus had second thoughts and retroactively turned it into a
two-book omnibus.
I'll say first that since it was free and I still have the original download, I'm not really out anything. It still cheeses me off a little.
The omnibus isn't for sale at Barnes & Noble anymore and I can't link to it there, but It looks like the author did the same thing at Amazon.
Note that
the book listing describes a "two-book bundle", but
this review lists the third book that's in the edition I downloaded in October, but is no longer there.
I don't have a problem with authors changing book availability from time to time (especially when we're talking about freebies), but taking a third out of a book that's already in my library seems a little unethical to me.