Recommend reading the “The Rules / How we Built this” section in the Call of the Armor thread. Projects like this can go off the rails without strong leadership and guidance to keep things moving.
You’ll also want to edit stuff – you can make things better while keeping original author intent in check in most cases. Although the ownership of each chapter is with a different member of the team, the telephone projects I led and worked on were better when we were communicative throughout the process to make a cohesive hack.
Good luck, chief 