MOBI, like EPUB, is a reflowable format. It is also the basis of Kindle eBooks.
MOBI is one of the current eBooks standards and is based on an outdated version HTML. A company called Mobipocket used to own this format and sold it through its own store, but Amazon now owns the format and has based its Kindle eBooks on it.
When you reach that point, use the following:
/path/to/kindlegen <filename>.opf -o <name of ebook>.mobi
- Divinity's End by Bryce Campbell
- Man's Punishment by Bryce Campbell