I'm reading St. Lucy's School for Girls Raised by Wolves by Karen Russell. I haven't been able to figure out exactly what "Saint-in-the-Box" means (I googled it) in the following:
'Does Mirabella try to earn Skill Points by shelling walnuts and polishing Saint-in-the-Box? No. Does Mirabella even know how to say the word walnut? Has she learned how to say anything besides a sinful "HraaaHA!" as she commits frottage against the organ pipes? No.'
The school has nuns.