Friday is not running away. Yes, she did get on a train to Norway without telling anyone where she was going – but she had to help Binky. He may or may not have been attacked by a polar bear. Now he's facing court martial for dereliction of duty. Obviously, Friday had to drop everything and travel 3000 kilometres to solve the case.
The fact that it's easier to handle her feelings for Ian Wainscott if there's a continent between them is just a coincidence. When Friday arrives in Oslo, there are so many mysteries to solve. Is someone trying to keep Binky and Princess Ingrid apart? How can a painting leave a museum when all the doors are sealed? And will Melanie persuade Friday to go to the royal ball without wearing a brown cardigan?
If Friday survives her trip to the remote Global Seed Vault, we may find out.