Okay kiddo, so a long, long time ago there was a man named Zerubbabel who was trying to rebuild a very important building called the Temple in a place called Jerusalem. But there were a lot of problems and people didn't think it was possible to finish the building.
So some other people wrote a story, called the Apocalypse of Zerubbabel, where Zerubbabel goes on a big adventure and has visions of scary things. But in the end, he learns that with faith and determination, he can finish the Temple and make it beautiful again.
It's kind of like a story book with a lesson to teach everyone that no matter how big and scary the problems seem, if we believe in ourselves and keep trying hard, we can overcome anything.