Batman. Volume 9. Bloom

"As the new Batman, former police commissioner Jim Gordon is in for the fight of his life against the bizarre threat of Mr. Bloom, who controls plant life in Gotham City! At the same time, an amnesiac Bruce Wayne has discovered the truth of his past as the Dark Knight -- now, he must descend into the Batcave and reclaim that painful legacy. With Bruce back in the cape and cowl once more, can the combined skills of two Batmen defeat Mr. Bloom and his minions?"--