A great story in a lot of ways. The Dodsons go above and beyond with their art. Fraction's writing isn't nearly as ambitious as his best, but he still makes it look easy to update pulp adventure for modern setting and sensibilities. But as a book, this one is pretty unsatisfying. It's much smaller than the first two volumes, and it could have easily become the end of book two or started a longer book three. Either option would have made sense: This one wraps up the whole "gang getting together" thing in a way that would have improved book two's ending, and the villain's scheme kicks into high gear to set up the next story. Putting it alone like this (and with such a long publication gap) turns it into a transition from one incomplete ending to another. Fraction, the Dodsons, and Adventureman all deserve better.
Edit: I now see that there is a "Volume 2" that includes these issues. That's much better, though it's going to be very confusing with two editions that have identical names but different content. I'm leaving my review unchanged, but I recommend finding the Volume 2 that includes Ghost Lights in it.