After a while Bronwyn started to worry.
"Oh shit. She'll have forgotten and put the key in her pocket and wandered off and I don't know if there's a spare anywhere."
Unfortunately she was on her own and the library was busy so she couldn't nip over to investigate.
After a few minutes another little old lady wandered up to the counter.
"Excuse me, do you have any paper?"
"There's some scrap here if you're wanting to make a note of anything."
"No, I mean toilet paper."
"My friend's using your loo and she's just texted me to say there's no paper and please could I get her some."