A friend of mine turned me on to this series. He got it from another friend. I introduced it to my husband, and three other friends. We’re all bomb techs, and we’re all obsessed with these books. Carl sounds like one of us, and Donut is my spirit animal. This series is phenomenal! My husband and I have been listening to the audiobooks as we travel and got through the first three. But we’ve had a break in traveling and I couldn’t wait to finish. I binged it over the last four days while cleaning, working, in the gym, and playing video games. The performance is *chefs kiss* and adds a whole new level, and has raised the bar for me in terms of storytelling. This book (and series) is absolutely worth your credit.