Aquaman (Rebirth) Vol 5

Now, Aquaman is part of the underground resistance fighting back against Rath, along with the mysterious Dolphin and his former sworn enemy, Vulko. Only Aquaman can unite the factions needed to take down Rath–but only if he agrees to become King once more, which Arthur has sworn will not happen.

But when Arthur discovers the love of his life, Mera, has been afflicted with a strange mystic illness that can only be cured outside Atlantis, suddenly the Crown of Thorns becomes a death sentence. Nothing will stop Arthur from leading the resistance to take down Corum Rath once and for all. The Crown must fall and so must the King!