I should have known something was up when I heard a feminine, airy alto join the chorus of bouyant tenors in a chorus from Rocky Horror. However, I was too busy napping. Even supervillains need their beauty rest. You've taken everything from me- my audience, my villain swag, and now, my precious Cookie.
I enlist the help of the drag queens to help me put on a disguise. Fake mustache, grey wig, suit and top hat, monocle and cane- I am now a grumpy, very rich old man in his 70s. I wish all the vampires goodbye, telling them all to keep slaying and serving looks on a silver platter, then continue on. You couldn't have gotten far.
I drive in my hearse I borrowed from Dracula, following your trail, until I reach the docks, where I barely miss the cruise that you've gotten on. Drat. All that hard work with makeup and costumes, and it was all for nothing. I suppose it's time for some mad science.
I catch a plane back to my lab, where I start mixing together ingredients with names like "eye of newt" and "toe of frog", until I've created a potion- one that will surely give me what I want.
I use my hangliding Frankenstein from earlier to fly me out over the ocean, where I quickly down the potion and dive into the water. After a few brief moments of thrashing in the water, it takes effect- my legs turn into a tail, and I grow gills on the side of my neck. I am now a mermaid.
I hitch a ride on one of the ocean currents, launching myself straight towards the Mediterranean. In no time, I'm sitting on a rock in the Adriatic Sea, singing to myself and running a fork through my wavy locks.
Then, I see it. Your cruise ship, heading towards a small bay where it'll dock. Those plans, however, will soon be interrupted. Mwahahahahaha!
I lean on the rocks and start calling out with my Siren's Song, telling tales of warm macaroni and cheese and wool socks and cool fossils and such to lure the boat in. Sure enough, it changes course, heading straight for the rocks. I wait until it's just far enough that it can stop before crashing, before ceasing my singing.
"Whoa, whoa, whoa!" I call, stopping the trance before the boat crashes into the rocks. It screeches to a halt. Trust me, I don't want anyone to die in my quest for the cookie. I'm a supervillain, not evil.
While the crew of the ship is trying to figure out how to get out of this maze of rocks I've gotten them stuck in, I throw a grappling hook and climb up the side of the ship with sheer upper body strength, since right now I'm, y'know. A mermaid.
There it is. Mine. My own, my precious Cookie, sitting in an elaborate crystal stand on the dresser of one of the bedrooms. I can hear splashing and laughing from the attached bathroom- foolish of you to leave the Cookie unattended, but lucky for me.
I slip in through the porthole, flop across the carpet, and snatch the Cookie, placing it into a waterproof plastic bag before diving back into the ocean, where I'll catch a current towards home, where my Frankenstein will wait with the antidote to this potion that'll turn me human again.