This book is darker than books 1 and 2, as Callie's sister, Thalia, escapes from Purgatory and makes a deal with the devil that will get rid of her family and put her in a position of power. Callie has to stop Thalia as well as elude the Ender of Death, who wants to kill her. This story is very violent, with graphic details of multiple deaths that include some people who are very close to Callie. Although there are two fairly graphic sexual scenes, they are not the focus of the plot, so I'm giving this book a sensuality rating of 3.
BOOK 4: How to Be Death
The reality of Callie's situation is beginning to dawn on her as she realizes the tremendous level of responsibility she now has as the head of Death, Inc. Here's how Callie describes herself at this point in her life: "While part of me is still a twentysomething girl who possesses a hard-core fashion obsession and a propensity for getting into ridiculous scrapes that invariably involve my friends—and even casual acquaintances—...there is another, more all-encompassing aspect of my personality that's a real stinger...I am, for lack of a better euphemism, Death...the Grim Reaper...or, just as aptly, the Girl Who Can Wish You Dead." (p. 1)