B.P.R.D.: The Black Flame #2

In B.P.R.D.: The Black Flame #2, Abe Sapien tries to settle into a desk job as the Bureau for Paranormal Research and Defense's war against the frog monsters escalates. But while Roger leads the Bureau's military units from victory to victory, the Nazi head
of a major US corporation puts his best scientists to work harnessing the power of the frog men, and preparing for the return of a bizarre villain from the Bureau's secret past—the Black Flame.