The story was good but Jeffrey Kafer (who was ok, albeit not good, on the Supervillainy saga) shouldn't be narrating books! He has an excellent action..Show More » hero voice, which worked well for the main character. But all the other male characters sounded the same. And the other main hero (an Irish woman) should not have sounded like a slightly robotic version of the main character; Kafer made no noticeable attempt to modulate his vocal tone to sound at all feminine and - unless he thinks all Irish people are androids - there was no attempt at an accent.
Seriously man, women aren't robots and female characters deserve just as much effort as male ones... and possibly even more when you're narrating across genders!)
Jeffrey Kafer has somehow managed to take the crown of "worst narrator" from the guy who butchered The Night Circus. The narration would have been better done by the male and female voices of Siri.