One of the books in the Hitchhiker's Guide to the Galaxy trilogy (of however many books there are) ends very abruptly because the publisher was so annoyed with

One of the books in the Hitchhiker's Guide to the Galaxy trilogy (of however many books there are) ends very abruptly because the publisher was so annoyed with him missing deadlines they told him to just finish the page he was on and published whatever he had written so far.