**Chapter 1: A Portal to the Unknown**

The sun was setting over the ruins of the old Warehouse, casting a warm orange glow over the desolate landscape. Ruby, Weiss, Blake, and Yang, the members of RWBY, stood gathered around a strange, glowing portal that had suddenly appeared in the middle of their training grounds. They had been investigating the mysterious energy readings for weeks, but nothing could have prepared them for this. "What in the world...?" Ruby trailed off, her eyes fixed on the shimmering portal. "I don't know, but I think we should be careful," Weiss cautioned, her hand on the hilt of her sword. "We don't know where that thing leads or what kind of dangers might be lurking on the other side." Blake stepped forward, her eyes scanning the portal's energy signature. "I think I can sense something... It's not from around here, that's for sure." Yang, ever the thrill-seeker, grinned mischievously. "Well, when are we going to find out where it goes?" Without warning, a group of figures emerged from the trees surrounding the training grounds. They were a diverse bunch, each with their own unique abilities and style. There was Spider-Man, swinging in on his web shooters; Iron Man, soaring in on his suit of armor; and Captain America, marching in with his shield at the ready. "Whoa, hold up!" Spider-Man exclaimed, eyeing the RWBY team warily. "What's going on here?" The RWBY team exchanged uneasy glances, unsure of how to respond. Before they could, a loud boom echoed through the air, and a massive, green-skinned monster emerged from the portal. It was the Hulk, and he looked like he was ready to smash. "Uh, I think we have a problem," Yang muttered, drawing her scythe. The Hulk charged towards the group, and the RWBY team prepared to defend themselves. But just as the battle was about to begin, a figure emerged from the portal, shouting orders and swinging into action. "Everyone, stand down! We can handle this!" The figure was none other than Star-Lord, aka Peter Quill, the leader of the Guardians of the Galaxy. He was joined by his teammates, Gamora, Drax, and Rocket, who quickly fell into formation around him. "Looks like we've got a situation here," Star-Lord said, eyeing the RWBY team and the Marvel heroes. "But I think we can work together to take down that big guy." As the two teams began to coordinate their attack, a figure watched from the shadows, a sly grin spreading across their face. "Ah, perfect," they muttered to themselves. "The perfect mix of chaos and destruction. This is going to be fun." The battle was about to begin, but the RWBY team and their new allies were about to find themselves in a whole lot more trouble than they bargained for... What happens next?