Reading progress update: I've read 90%.

School Spirits - Rachel Hawkins

“I know it looks vaguely unsanitary and potentially scandalous, Nana, but I promise that Izzy and I are only pursuing noble…pursuits. We’ve even got a chaperone! Izzy, who was that woman who went into the cave?”

I blanked, not sure how to describe Maya. I settled on, “My…also my Nana.”
“See?” Dex said brightly, ducking his head in to kiss his Nana’s cheek. “Izzy’s Nana! We are totally safe and appropriate.”