In the meantime, Spike and Mimic were trying to get out of their predicament. The Gloob had hardened, and the two of them were trying to break the seal.
"This is bad," Mimic said. "This is very, very bad!"
"Well, we can't get out the way we came in," Spike said, knocking on the Gloob wall. "It's completely hardened."
"I think there's only one way to go," Mimic said. "Follow me!"
"I don't know, Mimic. It's awful dark back there."
"Don't tell me you're afraid of the dark!"
"No! I'm not afraid of the dark! Of course not! I'm afraid of what might be lurking in the dark!"
Mimic shook her head, and lit up her horn for light. Spike climbed on her back, and they rode through the cave, which was not only dark, but it seemed deserted. Spike didn't like it. It was too quiet.
"I never trust anything that's unusually quiet," he said, looking around.
"Me neither, Mimic replied. "Something doesn't feel quite right around here."
Spike and Mimic continued on until Mimic ran into something. Or more like someone. In the dim light, Spike and Mimic could see what looked like the face of a monster.
"YIIIIIIPES!" both of them screamed, and Mimic ran off in the other direction. But they ended up running into another monster type creature. Mimic was about to run off when it grabbed her tail.
"Hello," a goblin-like creature said. And four others came out. "I am King of Grundles."
"We are rest of Grundles!" the other "goblins" said.
Spike and Mimic looked at each other. Then Spike remembered about the first time the Little Ponies faced the Smooze.
"Hey!" he shouted. Startled, Mimic jumped a little. "These are the creatures that helped me and Baby Lickety-Split get back to Dream Valley! The little ponies gave them Dream Castle. What are you doing here?"
"Grundles take a walk," the Grundle King said. "Saw green Smooze and ducked into the cave for shelter. Smooze is what buried Grundle Land."
"Ooohhhh, Grundle Land!" the Grundles wailed.
"Try not to mention it very often," the Grundle King said.
"So I've noticed," Mimic said. "Any ideas on how to get out of here?"
"Follow Grundles!" the Grundle King said, and he started down a tunnel with the rest of the Grundles following. Spike and Mimic looked at each other, and followed as well.
In the meantime, Wind Whistler returned to Ponyland with Megan, Anne, and the Rainbow of Light.
"Go for it, Rainbow!" Megan shouted, as she opened the locket.
The Rainbow of Light flew out of it just as Paradise returned with the Flutter Ponies.
"Everyone shift to Utter Flutter!" Rosedust shouted.
The Flutter Ponies shifted to Utter Flutter and tried to fight back the Gloob, as did the Rainbow of Light.
"Are you sure this is gonna work?" Anne asked.
"Ponyland isn't covered in Smooze anymore, is it?" Gusty asked.
"Well, no," Anne said. "But it don't look like that's doing much."
Gusty looked over and saw that the Gloob was throwing it's green glop everywhere, and the Flutter Ponies, or the Rainbow of Light for that matter, wasn't doing much to stop it. It looked like the Gloob was winning.
"Somebody do somethin'!" Glory shouted.
"I know what to do," Anne said. "RUN!"
That was the best idea yet! Everyone took off running after that! The Rainbow of Light and the Flutter Ponies continued to fight off the Gloob, until a hand reached up, grabbed the Rainbow, and pulled it down underneath it.
"Whoa, talk about déjà vu," Gusty said.
The Flutter Ponies flew over to their friends, breathless.
"We can't fight it," Rosedust said.
"It's much too strong," Forget-Me-Not said.
"Of course it is, you pathetic little ponies!" a cackling voice shouted. Everyone looked up and saw the Witch Trio, sailing on a river of Gloob.
"The Witch Trio," Gusty groaned. "I might have known!"
"Right!" Witch Cat laughed. "I see you've been trying to stop my little creation!"
"If anyone can stop the Smooze, the Flutter Ponies can!" Magic Star shouted.
"Precisely why we didn't send Smooze!" Witch Cat laughed. "We sent Gloob! Ha, ha, ha! And nothing can stop it! Not even the Flutter Ponies!"
"Blecchhh!" Applejack shouted as a glob of Gloob landed at her feet. "This is some nasty stuff!"
"No kidding," Anne said. She plucked a little off the ground and squished it in between her fingers. "Well, what do we do now?"
"Yeah, that stuff ate our Rainbow!" Gusty shouted. "Again!"
"I don't think there's much we can do," Wind Whistler said. "It would be impossible to dig it out."
"Anybody got a jackhammer?" Anne asked.
"There must be some way to stop the Gloob," Magic Star said. "We didn't think there was a way to stop the Smooze until we found out about the Flutter Ponies."
"Hey, we don't care how you stop it," Wavedancer said. "We just want to get rid of it so we can get out of here!"
"We can't do much without the Rainbow," Twilight said. "And we know for a fact the Moochick doesn't have another one!"
"Come on, you guys," Megan said. "We can't give up now. So what if the Rainbow of Light got eaten by the Gloob? We'll get it back."
"How can you be so sure?"
"I just know it."
KER-SPLAT! A big chunk of Gloob fell from a tree and splatted Applejack right in the head.
"I've always wondered if green gunk would restore the PH balance in my hair," she said.
"Well, I guess we should start for the Mushromp," Magic Star said. "Although I doubt the Moochick will know how to stop the Gloob. If the Flutter Ponies can't defeat it, I don't know what can!"