Trinkets, Treasures, and Other Bloody Magic, Dowser #2 - Dowser, #2

Three months ago, I lost my foster sister, Sienna, to the darkness. As in blood magic and chaos and general mayhem. No one saw it until it was too late, but I should have. Now, I have a wounded heart and soul that I can't even reveal to anyone around me, because I'm supposed to hate Sienna with the fiery passion of the justified. And I do. I just wish I didn't feel so lost without her, so unsure of the path I thought I had carved for myself, and so outclassed by the powerful Adepts constantly by my side these days.
I'm not even sure if they're with me for my own protection or because my shiny new powers are rare and valuable. Assuming I ever figure out who or what I am, and how my magic actually works. Even chocolate can't save the day every time . just most of the time. At least I've got that going for me. Trinkets, Treasures, and Other Bloody Magic is the second book in the Dowser series, which is set in the same universe as the Oracle, Reconstructionist, Amplifier, Archivist, and Misfits of the Adept Universe series.
While it is not necessary to read all the series, in order to avoid spoilers the ideal reading order of the Adept Universe begins with Cupcakes, Trinkets, and Other Deadly Magic (Dowser 1).