Death's Door (Merrowkin, #2)

After fourteen long years, Meri's family is whole again, but her life has become stranger than ever.

For starters, Meri's mother took her and her brother, Kevin, down to Kilstiffen, the sunken city of which her grandfather is the king. Not only is Meri the heiress of Kilstiffen, her grandfather expects her to act the part. Worse, those who live below don't trust surface dwellers, including Meri's father. As if all of that wasn't stressful enough, school is starting up again with a new headm...