Just had a look on trip advisor and there are still Barcelona hotels showing availability for the weekend at not-too-unreasonable prices.
I’m at the Hotel Medium City. Never stayed there before so can’t exactly recommend it but it’s 5 minutes walk from the main train station from which you can take a train direct to Montemelo station.
G here, can’t believe it’s come around so soon.
Is anyone else staying in the Sants station area?
My ticket came through from Travel Republic this morning. Now I just need to learn enough Spanish to work out where I’m sitting.