Embarking...again

Well it's our last night here in Prague. Tomorrow we're headed to Frankfurt where my mom will fly back to Canada. Originally I had booked a RyanAir flight back to London Stansted...after having arrived in Swtizerland however, I realized that our rail passes are good for another 3 days after my mom leaves. They can get me as far as Bucharest, and since I don't have any particular reason to get back to the UK immediately, it seems like a waste not to use them. And so I embark on a new adventure...