Enjoyable fantasy novel for kids, in which a young girl called Molly decides she'd rather take on a dilapidated castle and assorted minions than her good twin Sarah. (I actually found Sarah quite entertaining in the few moments we had with her. Like a Disney Princess with the dial turned all the way up, but it was her habit of declamation that made me laugh. Would have liked to see more of her.) The story itself is fairly straightforward, not a lot of surprises and Eudaimonia's trick is apparent from the get go, but "charming" really is the accurate word here.