The Girl in the Box, Book 50
(Paperbacks available on Amazon in US/UK/EU)
When Sienna Nealon is unexpectedly summoned to the White House, she suspects it can't be for anything good.
Because there is a crisis afoot, and Sienna is the only one who can deal with it. But she's still got other problems to deal with, including a serial killer and an explosion in her personal life, and when all three trails start to combine...
...Well, it might just give her more trouble than she's ever had to deal with before.