Not only did he have the task of writing the book, but Matt had to put on a publisher's hat and either produce or coordinate the production of the book design, copyediting, final proofing, and ultimately publishing and promotion.
Keeping track of a multipart complex plot can be tricky. Below is a diagram of the main plot line in The Midas Protocol. Matt created this diagram much in the same way he considers a user's experience in the world of IT. He started with the main personas (characters) and traced their journey through the timeline.