IMO you recognize Bobby in the book very good at writing style again. In addition, as one learns a lot about his background - both events that are raised in the series itself only briefly, as well as completely new stories and a lot of background just to Bobby. His time in Japan is more illuminated and filled with stories while I really thought all this time that Bobby writes itself. However, one should note that the book is written entirely in English, so the language should already be (at least roughly) powerful.
But you should note that the book between the 5 and 7 relay is angesidelt; z. B. is not of the "black goo" (I try not too much to spoil, for still ignorant) the speech, on the other hand already from the potion of a grandfather to certain "infections" ...
Strong buy recommendation for fans, possibly even for the rest of interesting because not only Bobbys background but also partly the generally supernatural is received.