This is a "Wild Mass Guess" entry, where we pull out all the sanity stops on theorizing. The regular entry on this topic is elsewhere. Please see this programme note.
Jekyll
A strange little fact discovered as a combination of Google Search and forgetting how to spell. It turns out Petersime is a multinational company that sells egg incubators. Like, for chicken farmers. Was the character named after it, or is something more sinistergoing on?