What I'm about to reveal would generally be considered a huge spoiler, but given Last Hope's unfinished status, I think it's safe to reveal this cool tidbit...
From what I can remember being told, this volume was going to culminate in the surprise return of Drake (who, if you may recall, was left for dead back at the start of volume 2). The catch is that Drake was rescued by the evil Lord Kumagai (the guy that has been tracking Hiroto since volume 1) and is now his right-hand man. Needless to say, the surprise reunion would've quickly deteriorated into some seriously heavy action.
Also, here's a copy/paste from Wikipedia about the Frankenstein world these unfinished pages show:
Quote:
House of Frankenstein
The third world the gang visits; second volume. This world seems to exist in the past somewhere in the Swiss countryside near a city named Bern. Because this world was only introduced for a brief two pages before the epilogue of the second volume, knowledge of this world is limited.