I want to take part but am scared to share my work!?
You do need to have a high degree of confidence in your writing to take part. It’s going to be read by a lot of people! That said, apprehension is normal; it’s how you know you care about getting it right.
If you don’t think you’re ready to share such a rapidly produced piece of work with the general public, the answer isn’t just to take part under a false name. That’s not fair on others taking part, or on the people reading the books. Instead, I’ll be more than happy to assign you a chapter and send it out at the same time as everyone else. That way you can take part at the same time, but without being included in the final published work.