Alright. I'll start cycling Skye, and if I find someone to get me Annabelle before you're ready I'll let you know.
I use the go forward 2 days, go back method. It never assures anyone in boxes unless you missed a ping, which is hard! Also, if you talk to other villagers while searching for the ping, they will mention "rumors" and how bad they are, etc which means nobody is leaving