The second book of the study series follows Yelena as she returns to her home country of Sitia for magical training. Soon she's wrapped up in both politcal intrigue but also a search for a rapist and killed of young girls. 
 I loved this book, not going to lie. And yeah, there were definitely moments when Yelena did too well, or got out of this scrape too easily, or her and Valek's relationship seemed too hyped up in comparsion to in poison study. But, Snyder's way of writing and the amount of suspense and intrigue kept me reading. 
 Also, Kiki. I love Kiki. 
 Seriously, there's such much I could say about Snyder's writing style and ability but I suggest you just pick up Poison Study and see for yourself.