Batman - The Dark Knight

The third volume of the bestselling Batman: The Dark Knight kicks off
with the new all-star team of Gregg Hurwitz and Ethan Van Sciver. Batman
discovers a trail of bodies but no leads. His detective skills are put to the
test as the Mad Hatter begins kidnapping Gotham citizens for an unknown purpose.
But as the Dark Knight delves deeper into this mystery, he soon realizes that
this is unlike any Mad Hatter case before. The Hatter's gory past will be
revealed and Batman's resolve will be put to the test.
Collects issues #16-21 of Batman: The Dark Knight and Batman: The
Dark Knight Annual #1.