Curio is a hardcover book written by Evangeline Denmark.
Because Curio is a teen/tween book, I am going to hand this over to my daughter for the review (*spoilers included*):
Grey Howard lives in Mercury City, where Chemists roam the streets with their chemia magic. Grey's grandfather, Olan Howard, owns a shop where the ancient curio cabinet lies, unused. Grey receives a strange mark on her skin, which makes Olan believe she is special. His faithful assistant, Hiamon, sends Grey on a journey through the curio cabinet, telling her to rescue "him". While she's in the cabinet, she finds a world made of metal, porcelain, and other materials. The "porcies" (people made of porcelain) welcome her into their home, where "tocks" (metal people) are the servants. In Curio she meets the "Mad Tock", a boy named Blaise. Blaise also has a mark, and he tells her that they are both Defenders. Together they fight a battle, defeat Lord Blueboy, and escape. (Blaise is the one Hiamon wanted Grey to save. He had been sent into the cabinet a long time ago.)
I asked my daughter a few questions about Curio - here they are with her responses:
Yes.
Do you plan to read it again?
Yes.
What did you like about this book?
Everything.
What (if anything) did you NOT like about this book?
Nothing.
Would you recommend this book to others your age?
Yes.
What ages do you think would enjoy this book best?
12 to 15
Any other comments about this book?
It's a good book.
Out of a total of 5 possible stars, what would you rate this book?
4 stars.