Xander's incessant giggles over what he'd successfully nagged a superhero into doing stopped only when this irritated Kryptonian completed the second-to-last element of their plan. After the Mayor of Sunnydale disappeared into non-existence without even a final "Golly!" coming from that century-old sorcerer, with Richard Wilkins III now facing the certainty of an entirely different (and unasked-for) type of immortality, a satisfied Superman then destroyed the Phantom Zone projector, crushing it in his bare hands into a marble-sized metal and plastic ball.
Flipping that small globe into the office wastebasket, Superman then blurred out of the politician's workplace, effortlessly soaring up into the Sunnydale night sky, as a more-cheerful founding member of the Justice League now informed the calmer boy in his head, "Xander, all that's left is to tie up a few loose ends, and then it'll be time for us to say goodbye."
A resigned reply was mentally sent from that addressed high school student, *You really can't do anything about the Hellmouth itself?*
This question produced a regretful shake of Superman's head, with the famous curl of hair remaining undisturbed by that action, as the bad news was once more confirmed. "That thing's still too mystically powerful. I don't even dare go near it, or the magic coming from there will affect me just like any other human. Still, now that the Mayor isn't directly controlling the Boca del Infierno, plus that all the other bad guys are gone from here, I think your hometown will be a lot more peaceful and safer for a while."
An accepting sigh came puffing from insubstantial lips, as Xander's psychic form shrugged in acknowledgment of the older man's comments. *Okay, gotcha. Anyway, thanks for everything you did tonight, cleaning up the town and collecting those costumes- Awww, crap!*
"What?" snapped Superman, as he abruptly halted in his flight, not liking at all the sound of his companion's mortified yelp.
Xander sheepishly said, *Er, there's one more costume left that I took from Ethan's and forgot about, so it might have changed-*
Superman groaned out loud, and then he firmly informed the now-quiet teenager inside the Smallville native's head, "Why didn't you say something before? Now, we have to- WHAT?" That last word was barked in a tone of combined exasperation and bewilderment at the sudden outburst of mental laughter coming from Xander.
*HA, HA, HA, HA!* guffawed the high school student, who finally managed to calm down enough to inform an annoyed Superman, *I really wasn't sure he'd actually wear it, but I'll show you where he lives, and if Angel's not there, he has to be somewhere on the streets in that silly costume, looking for Buffy!*
As he swooped down towards the town below in preparation for another city-wide search, a bemused superhero had to ask, "Just what did he dress up as, anyway?"
Several minutes later, while both of the chortling people sharing a single body watched the hilarious events taking place beneath themselves, Superman genially chuckled, "I really hate to spoil the fun, but enough's enough. How about we wait and let him get to the end of the block, and then break things up? After that, I'll do one last check of the affected Halloween people, and then it'll be time to deal with Ethan."
A sniggering Xander Harris watched a former vampire (and wasn't that totally weird?) determinedly outstripping his pursuers, and then regretfully agreed, knowing that the memories of all this would still stay with him forever, lifting up his spirits through the bad times. *Yeah, okay. Boy, Angel's showing a really good turn of speed, considering he's probably never run a hundred-yard dash in a dress before, much less in a Strawberry Shortcake costume.*