Daring Do and the Arimaspi's Labyrinth

While Rainbow was chickening out, warning her friends, Daring Do and Gilda stepped forward. "Bring it." they said simultaneously.
"Oh, I'm so scared!" the one-eyed goat said in his best girly voice. He walked over to a plain, flat, peaceful bit of land, like a park. Everyone else following, Daring and G in the front, a big bunch of walls started coming out of the ground. The two got trapped in a maze, and it was tilting. And they didn't know that there were giant boulders coming at them, until they saw one. They tried to fly... but no luck. "We better stick together, so we can get to the middle at once." Daring Do suggested.

The three bolders going around, following the two brave ones, eventually they got to the middle, but there were three ways out, and each was blocked, by a boulder charging at them.

But then, out of nowhere, a sonic boom. A sonic RAINBOOM. It broke through the magic barrier and swooped right it. that "Rainbow Dash" grabbed the two ponies and stopped in the middle, not scared of those giant rocks that could crush them... Because they also crushed each other. The boulders were so big that it left a bit of room underneath, where they didn't meet, enough to cram two ponies and a griffon. Those giant spheres broke themselves in half, and everyone got out. The maze and everything went back into the ground...