Aquaman (2016-) #21 (NOOK Comics with Zoom View)

“H2.0” part three! Aquaman and Mera learn that the “strange water” they’ve been sent to investigate is in fact a gateway to an alien world that’s the source of Arthur’s recent troubles! And tensions flare between Aquaman and his less-than-heroic teammates over whether to make contact with this new world or destroy it!