Wolfsmund Vol. 4 (manga)

With the flanks of the Wolf's Maw falling one-by-one, now the ominous fortress itself is in the crosshairs of a dual-threat of Canton allies. Lead by new forms of weapon's technology, canton rebels are willing to risk countless lives for one last chance at freedom. And with Walter Tell literally climbing the walls of the Wolfsmund, it seems inevitable that the barrier station will fall. But before that happens, Wolfsram will unleash more than a few more devious tricks from his already deep arsenal.