Barrel Proof is the final book in the Irish & Whiskey trilogy, and it starts off with a bang. My heart was shattered in a million pieces in the first 20% of the book, and it got slowly put back together throughout the rest of the suspenseful storyline. Not without plenty of twists and surprises, of course! I love Jamie and Aidan so much, and I’m very happy I have more books with them to read!