NEED HELP STAT!

Okay this is my first post in any reef blog. I just enjoy reading what other people are doing and taking in the info most of the time. Most things I run into I can find something already written about it. The cause of this blog has me completely baffled. I came home today to find one of my two branches of octopus coral missing from it's usual happy place. The Base was still present. The second branch of the coral was still fully inflated and happy as usual. But one was simply missing. Only ...