From the back cover:
The shocking truth behind the collapse of the Soul Society is finally revealed! The magnitude of the conspiracy is far-reaching, and the perpetrators wield staggering power. Is this the end of the Soul Society?

Review:
Many, many explanations were forthcoming in this volume. Things that were revealed include who murdered Aizen; why Rukia was scheduled to be executed for a relatively minor offense; and more on Urahara’s background, research, and actions. Some of the answers were a little out of left field, but it more or less made sense.

Some cool things happened (Byakuya! ♥!) and one major lame thing, where all of a sudden every minor character in the Soul Society emerged from the woodwork in time for the final showdown.

All in all it was a satisfying volume. I can truly say now that I am ready for this arc to be over, though, and for the focus to return to the regular cast of characters.