YA Pick of the Week: Grendel's Guide to Love and War by A.E. Kaplan
Tom Grendel lives a quiet life: he mows the lawns of the senior citizens in his neighborhood, writes in his notebook, and pines for Willow, the not-quite-manic-pixie-dream-girl-next-door. All that changes when Willow's brother Rex starts throwing incredibly loud parties that scare the senior citizens and trigger Tom's dad (an Iraq war veteran)'s PTSD.
Tom begins to retaliate in an effort to stop the parties, and one retaliation leads to another in this surprisingly charming, silly, and sweet story of one high school summer. This book is loosely based on the ancient tale of Beowulf and Grendel, so if you've read it, you may enjoy it even more (reading Beowulf is NOT necessary for reading this book).