Batman vs. the Monster 4 (Patreon)

(Batman, completely blank, heads for the ocean again. He simply walks into the water and oddly no longer needs oxygen tanks. He can breathe underwater. He continues to follow the siren call until he reaches the monster he'd encountered earlier. Batman stands upright and at attention, awaiting instruction)

Creature: "Ah Batman, it appears that not even you are immune to my siren call. You witnessed quite vividly what my blast did to your suit, but I imagine you didn't anticipate the more subtle effect it had on you. While under my call you are completely obediant to my wishes. So, I first command you to lay down and surrender."

Batman: "I surrender to you undisputed Sea King."

Creature: "This next blast will cause you to sleep Batman. When you awake, your role in my kingdom will become more clear. And my plan for all sea-dwelling citizens, you among them, will be set in motion."