This book moves the series forward what with the need to open the Forge and then to make it operational. That need requiring acquiring more cores which, as to be expected, mostly reside elsewhere. This takes them to other locations where they encounter close-call situations with the natives and the fauna . Still under-powered, they find themselves facing a Golden Mech which is much more buffed-out than Archetype. This is the epic boss battle and epic it is with near death to primary characters to players selflessly endangering themselves to save others and more. I took off one star since the core pursuits came off somewhat formulaic.