Thinner Legion: Delta

Tails-Ko saw a large base loom out of nowhere.
She couldn't make out details out of the haze, but it seemed grim, ugly, grimmer, uglier, etc.
That seemed like the place to go.
Dipping down in her flight, she saw the Asteroid, Quake and Eagle wisps hanging around, without a coherent purpose.
Pearl was also there, trying to juice the info from them.
"Oh, hi Pearl. Where's Dawson?" asked Tails-Ko.
"He's at school." replied Pearl. "Say, have you seen Sis and Onyx anywhere?"
Tails-Ko facepalmed at how dense boys could be. Sheesh!
"Pearl, jeez! Isn't it obvious that their vanishing and this ugly building are linked? And you're just floating here talking to Lost Hex wisps?!“
Pearl glared at her.
"Tails-Ko, of COURSE I know that! I'm just trying to confirm if my suspicions are incorrect!"
"Save your excuses. Boys."
Pearl sighed with exasperation.
"Being rich, I can see why you are as dense as I presumably am."
Tails-Ko blushed with annoyance, but dipped beyond Pearl to investigate the building.

After the fox vanished, the Asteroid wisp spouted something.
”&&……￥￥……%￥￥￥" it warbled.
Yip translated.
"Chao chao chao, CHao Kao CHaos chaos chaos." it said.
Not very helpful, but Pearl knew the tongue of Chao. ...Not that he ate them, but he knew how to translate their language.
"So... some legionnaires named Omega-Gamma and Theta, you say, took Jade and Onyx to the building. They squirted thinner at the strugglers and said something about Dark Mira... Ah. It makes sense now."
Pearl sighed.
"Well... Quake Wisp, let's get moving. Eagle and Asteroid, stay on standby. Yip will adapt your powers." said Pearl.