There is so much potential in this series! Banshees, the Netherworld and its hellions, high school drama. It went awry in My Soul to Keep: I’d hoped that by now Kaylee would have learnt that she’s a kid and she can’t solve all the bean sidhe problems by herself, especially since until a few months ago she didn’t even know she wasn’t human. But no, we have Kaylee yet again attempting to tackle a huge problem all alone, with her merry band of sidekicks along for the ride. She believes that her father would ground her again if he found out that kids at her school are addicted to Demon Breath, but that makes no sense at all. She’s not the person supplying them with the drug, how could it possibly be her fault?I liked the progression of the world, with more supernatural creatures being introduced, each with varying powers in the Netherworld. Although Kaylee’s mysterious trips to the Netherworld are never fully explained, I liked that the workings of the Netherworld are explained in more detail. The plot of the book is enjoyable and I was unable to tear myself away for long periods of time. The kids who are addicted to Demon Breath are in a bad way and it was compelling for me to see how bad the situation got before it was fixed. I think the book also tackles a real issue, and for once, since it was Kaylee’s friends who were involved, I understood her desperation to get everything back to normal.I did, however, dislike how Kaylee insisted on keeping her best friend in the dark about what was going on. I understand the instinct to protect Emma, but it got a little ridiculous – Kaylee is angry at her father and Nash for not telling her details of her supernatural life, but justifies doing the same to Emma.One of the other let downs is the relationship, or lack thereof, between Nash and Kaylee. After the first book Nash ceased to be interesting for me, and in this book he’s completely different to the Nash we met in the first book. I didn’t like him at all. He was way too forceful in sexual matters and I hated the way he treated Kaylee. It was made worse by Kaylee’s reluctance to actually get angry at him, I really don’t enjoy the trope of the not-so-popular girl being so thankful that the gorgeous guy is with her that she overlooks the fact that he’s a first class jerk. I do however, enjoy Tod. He’s such a gentleman and genuinely cares about Kaylee. I hope something awesome happens between them, although it would be horrifying for Nash if his girlfriend ended up with his brother.So, I liked the story, but hated the characters, and general hold no love for Nash any more. I want to keep reading because of Tod, and pretty much only because of Tod, and I hope Kaylee grows up soon. I think the premise of the series is still great, and would recommend the first book to my readers. From what I’ve read, the series does get a lot better, so I’m going to stick with it!You can read more of my reviews at Speculating on SpecFic.