"It only works at the old ruins down the coast," Ylva explains earnestly. "I thought if you looked after it, I'd get to see you. When I go, and when I come back, you see?"
"And in between you'll be gadding about Saldissay on your own?" Mathea asks, still sceptical. Ylva brightens.
"Oh no, I'll be quite safe! I'll be with, um, with Arvid."
"You do realise those statements don't belong together?"
"Mum, please!"