Thanks to KTKomedy2813 and Anonymous for reviewing!
About a moment later, Fluttershy was standing in the square with Twilight beside her for support, waiting for the army to arrive, while Pinkie and Rarity were putting the finishing touches on their plan for Giant.
Soon enough, Pinkie and Rarity came up.
"Well?" asked Twilight.
"Taken care of," Rarity said.
"And you're certain it will work?" asked Fluttershy.
"Of course!" Pinkie said. "He's disguised so good they'll think he's just a statue!"
"I hope so," Fluttershy said, just as the army arrived.
"Alright, where is it?" a soldier asked.
"Where's what?" Twilight and Fluttershy asked innocently.
"You know perfectly well what," another soldier said. "The giant metal monster!"
"Oh, the metal monster," said Fluttershy. "Follow me." She led the army to her cottage and around the back, saying, "He's right back here."
Upon seeing what Giant was disguised as, Twilight and Fluttershy exchanged looks as if to say, "Was this the best Rarity and Pinkie could come up with?" before Twilight nudged her.
"That's the only thing that anyone was talking about these past few days," Fluttershy said, gesturing to the 'statue.' "A big statue of a metal monster with glowing eyes."
"See?" Twilight said. "There you have it! False alarm! It was just a statue!"
Shining Armor sighed before saying, "Alright, men, move out." But then, he turned and said, "Twily, I'd like to have a word with you."
"Sure, Shiny," Twilight said, before they both began walking back to Ponyville.
"You know, Twily, I'm sort of relieved that this was a false alarm," Shining Armor told his little sister as they made their way back to Ponyville to the library.
"Yeah, so am I," Twilight said.
"But, Twily," said Shining Armor, once they had arrived at the library and they had walked in, "if there really was a giant metal monster, you would tell me or Celestia, right?"
Twilight paused before saying, "Of course."
Inside, she felt guilty. It killed her to lie to her BBBFF, but she was holding to her promise not to tell anyone about Giant, and that extended to him even if it wasn't a Pinkie Promise.
"See you soon, Twily," her brother said.
"Bye, Shiny," said Twilight.
After her brother had walked out, Twilight peered out the window, waiting for him and the army to leave Ponyville. Once she was sure they were gone, she left the library and headed to Fluttershy's house.
Once there, Fluttershy came out and gave her a questioning look as if to say, "Are they gone?"
Twilight nodded once.
Fluttershy sighed in relief, before she turned to the disguised Giant and said, "Okay, you can move now!"
He unfroze and brushed off the metal decorations Rarity had placed on him.
About a moment later, Twilight was back in the library, looking through her books once again to find out what sort of robot Giant was. This was the last book on robots in the pile and if she didn't find anything on Giant in there, then she would have to go with Fluttershy's assumption that he was a friendly robot.
She was about to give up until she stopped on a page.
"Finally," she said, before she began reading. But as she did, her relieved smile was starting to change into a look of horror. "Oh no," she said. She immediately ran out of the library to get Pinkie Pie, Rainbow Dash, Applejack, and Rarity, while yelling, "Fluttershy, Fluttershy!"
Fluttershy was in danger and she didn't realize it.