It was Ben and Zane's hardest case yet, a real Riddler of a mystery. They

would need some help from the local photographer, Devan, to get to the

bottom of it. And it paid off - she had taken a treasure trove of pictures

and video, exhaustively researching the very same case. She found that

there was one common factor behind the string of disappearances of villains

in the city: massive amounts of guano left behind at the scene. But what

could be doing this? Who would drain the blood of dozens of hard-working

megalomaniacal job-creators, yet be smart enough to evade capture. But in a

vast city of people throatily declaring "I am Batman," where could they

find the elusive Man-Bat?