Gilesbie–Hotchkiss theory is the theory My Immortal's author attended the Hotchkiss School in 2009. The Hotchkiss School is a private college-preparatory boarding school in Lakeville, Connecticut. The theory was proposed by the Reddit users ShareDVI and seudou in a thread where Toby posted metadata from emails he exchanged with the author. The emails contained a special header, "X-Originating-IP", which provided the IP address of the sender Toby was exchanging messages with. Through examining archived Wikipedia talk pages and DNS records, the IP address was found to be associated with the Hotchkiss school network.