The Girl in the Box, Book 36
(Out of the Box 26)

Amazon AU!

Blurb, minimalist edition (I hate spoilers):

Following an explosive incident in New York City, Sienna Nealon is sent to Nashville, Tennessee, where a man with a strange voice power is wreaking havoc.

(Paperbacks available on Amazon in US/UK/EU and on Nook)

(Soundtrack of Chandler's playlist is posted at the bottom of this page):

Click below to jump to each book in Season 7: