
Calacas: Mariposa is filled with marigolds and butterflies by day, and by night, skeletons awaken in song and dance.Boarding School: Eleanor West's Home for Wayward Children, which is for children who went to Magical Lands, got kicked out, and wanted to return.

At the same time, lots of children die in these worlds, it's disturbingly easy to go through a Door by accident, and the trauma of being displaced (or of being forced to be a hero) is arguably the central theme of the series.

They take children to worlds that give them what they need, and there seems to be some sense of fairness as each one has "Be Sure" on the door and children are rarely taken against their will. Blue-and-Orange Morality: The Doors clearly don't operate by any human sense of morality.Big Beautiful Woman: Alexis Chopper is described as fat, golden-haired, vibrantly blue-eyed, and "beautiful in ways Jack stumbles to find the words for.".Occasionally she reminds people that she's also the hero who overthrew that world's despot, such as when she grabs a baling hook and impales a Vampire Monarch through the neck. Beware the Silly Ones: Sumi's time in a candy-themed Nonsense world left her a restive, chatterbox Cloudcuckoolander.So far we've had Jack and Jill's backstory in Down Among the Sticks and Bones and Lundy's backstory from In an Absent Dream. Backstory: Every even book is a backstory for one of the characters introduced in the general arc.Arc Words: "Be Sure", written in many magical lands on the entrance and warning the children that they must be sure they want their magical land.In particular, Jack and Jill's parents are emotional abusers who use them as a status symbol, and Antsy's stepfather is a sexual predator.

