Onyx entered the hideout, fuming.
"Onyx, you've returned!" Peridot asserted happily. "Where are the runaways?"
"Gone," Onyx muttered. "Forget them. It's time."
Peridot nodded grimly, hesitantly turning to a control panel. "Dispatching all units to the lobby."
A large metal door opened, and hundreds of different gems piled out - Jaspers, Amethysts, Pearls, Rubies and more.
"How exactly will this work?" Peridot inquired. "You can't possibly get each and every one of them to synchronize."
"That's not important!" Onyx shouted. "Let's just get this over with."
She approached the troops, summoning her sledgehammer. "Comrades, gems of all types. It is time for the moment we've spent our entire Earthen lives preparing for. The key to world domination, a tactic so plain and efficient that the Diamonds should have known," she sneered. "Fusion."
The assorted gems gasped and whispered confusedly.
"I'm sure most of you are unfamiliar with fusion between different gems, but I can assure you, I myself have witnessed what fusions are capable of. A whole new world of possibilities . . . a whole new brand of power!"
Onyx gripped Peridot's arm and twirled her around. In a flash, they fused into a towering, dark green gem with wild celadon hair and a long flowing Castleton green cloak that covered most of its body. The fusion had a visor and limb enhancers, compliments of Peridot, and notable muscularity from Onyx. They'd formed Aventurine, the perfect blend of brains and brawn.
"Try it!" Aventurine said earnestly. "We can all create something unimaginable together!"
The army joined in. Multicolored flashes encapsulated the hideout. In the end, there was only one being left. A monstrosity of gems piled on top of gems. An entity so unprecedented and godlike that it couldn't take on a specific form. It was an ever-changing mound of light and power.
"Must . . . Possess . . . Earth!" it cried in high-frequency shrieks, exploding the hideout and boardwalk entirely. The fusion shot through Beach City at warp speed, heading straight towards Celestial Summit.
"Welcome to Celestial Summit," Angelite announced once they warped to the peak. The mountain almost touched the atmosphere and was grassy, covered in lavenders. The summit overlooked everything - the strawberry battlefield, the pyramid temple, even Beach City and the ocean. Celestial Summit stood over it all, yet was discreet, hidden in the clouds and always out of sight. The perfect place for observing.
Alabaster yelped and dropped Tourmaline's gem. It gleamed and floated into the air.
"She's reforming!" Angelite exclaimed excitedly.
Green Tourmaline fully regenerated, taking on a new form - her hair was long and wild like an Amethyst's, still shamrock green. She wore a sea green jerkin and olive drab leggings with forest green boots and black fingerless gloves. Her eyes were as bright and fierce as ever, striking chartreuse terror into everything that caught her gaze.
"I'm back," she said timidly, summoning her bow. "Where are we? Where is Onyx?"
"Onyx is gone," Angelite explained. "We're at Celestial Summit . . . the last place I felt at ease. The place where Snowflake Obsidian was corrupted." She hastily told them both the whole story, from her departure from Homeworld to their present situation.
"Oh . . ." Tourmaline and Alabaster said in unison. It was at that point Tourmaline acknowledged Alabaster's presence.
"What is she doing here?" Tourmaline exclaimed, nocking an arrow. "She's with Onyx!"
"Alabaster is with us now. We're all comrades here. Onyx has wronged us all in one way or another, and we need to band together to defeat her. We must prepare for a fight." Angelite said boldly. "What are her weaknesses?" she inquired.
"Onyx? Weaknesses?" Alabaster muttered in confusion, glancing at Tourmaline.
"Well, there has to be something. Her sledgehammer?" Angelite suggested. "It appeared heavy. Carrying it may slow her down."
"No . . . we won't be facing Onyx. Sooner or later she'll know we've turned against her. She's getting impatient. And with the Crystal Gems gone, she'll take this opportunity to go through with her plan, with or without us." Alabaster said grimly. "And I think it's happening now."
The peak quaked. All three of them summoned their weapons and turned towards the mangled silhouette that towered over them. The Omni-Fusion hissed, struggling to take form. Finally, in a huge blast, it happened. Angelite, Tourmaline, and Alabaster flew backward over the edge of the peak. At the last second, Angelite summoned a scimitar and stabbed it into the side of the mountain, hanging on to Tourmaline and Alabaster. Celestial Summit quaked as the Omni-Fusion took form.
Angelite was frozen. For once, she didn't have a plan.
"Let go!" Alabaster shouted. "We can escape before it forms! I have an idea!"
Angelite sighed, released her grip on the scimitar, and the three of them plummeted into the ocean.