A Third Gem

   "Yup, they're all in there." Pinkie said, looking at the caramel colored pony, with the white mane, blue eyes, and lollipop cutie mark that was her sister.

   "Why wouldn't they tell us?" Twilight asked, looking a the deep blue unicorn, with the silver mane, yellow eyes, and scroll cutie mark that had to be her brother.

   "Not cool!" Rainbow looked at the white pegasus with the rainbow mane, orange eyes, and rainbow comet cutie mark that was indeed related to her.

   "Not very truthful." Applejack looked at the yellow pony, with a green mane, orange eyes, and red apple cutie mark that had to be an Apple.

   "I never expected this from Leaf!" Rarity said, astonished.

   "Silver Rite!" Twilight barged into the store.

   "Apple Butter!"

   "Gem Leaf!"

   "Rainbow Bolt!"

   "Lollipop Swirls!"

   "What?!" Silver Rite cried in astonishment.

   "How?!" Apple Butter said surprised.

   "Where did you-?" Leaf started.

   "Are you spies?!" Rainbow Bolt asked, flying up close to Rainbow Dash.

   "Pinkie?!"

   "Why didn't you five tell us you were going here TOGETHER?" Rarity asked.

   "You didn't ask!" Apple Butter replied.

   "Are those blueprints of all the ventilation in the museum?!" Applejack asked, "Were y'all trying ta rob 'em?!"

   "I'm taking you home right now, Silver Rite. You're on the next train back to Canterlot." Twilight started pulling her brother's ear with her magic.

   "You too, Apple Butter," Applejack said, "Yer goin' back ta Appleloosa, where they need you. I can't believe you would lie to us like this."

   "I normally don't like to punish foals," Pinkie said, "But I'm going have to make an exception today, back to the rock farm."

   "Back to Cloudsdale."

   "Gem Leaf, you are grounded."

   Leaf's head throbbed. Should I tell them? How will they react? Will they believe me? Will they help?

   "No! We can't leave!" Rainbow Bolt yelled.

   "Why not?!" Rainbow Dash asked.

   "B-because our friend needs our help!" Gem Leaf said.