Everyone is really helpful in East Lothian. Just as Morris drew a map of the area around Traprain Law for Scordril, Hannah has drawn one of Musselburgh for Farlkris.
If you visit Musselburgh, you can follow the routes the characters took throughout the story. You will have to look hard to work out where Hannah’s house is, though. You’ll find out her house number when you read the book, and then it’s up to your detection powers to work out just where it is in the road!