"Oh wow," says Gemma. "Unsettling is kind of an understatement, am I right?" She can't even imagine the way she'd feel if a letter like that turned up in her life. The surprises she's already gotten are plenty thank you very much. "At the very least I could've been carrying more than half a chocolate bar. Do you want to go somewhere? I could treat you to a coffee or whatever. I promise I am a nice person and not a perv or a weirdo or something."