You want to try Adventurous Reader but don’t know where to get a non-linear e-book? This page has a couple suggestions to get you started:
The Most Boring Book Ever Written by Rudolf Kerkhoven and Daniel Pitts is a satirical, Choose Your Own Adventure-style novella available for purchase from Amazon. While it doesn’t come ready to view in Adventurous Reader, it’s easy to convert to an EPUB file and setup its table of contents. See this page for a complete tutorial.
Pajar is an experimental, science fiction novel that comes formatted for use in Adventurous Reader. This free sample was written alongside the application for testing purposes and for demonstrating how sections and nodes are created from e-book data. The novel is a work in progress. If you have feedback, send it to me!