The Attack on Ubbin Falls, more often known infamously as the Ubbin Falls Massacre, was a attacked conducted on the town of Ubbin Falls on Hydaelyn in the Malica Universe in the year 15 AXC (1275 NE) which was conducted by Combine forces during their efforts at capturing the Warriors of Light and in the process completely slaughtered the people of Ubbin Falls completely, leaving behind a ruin settlement for the former members of the Scions of the Seventh Dawn and Tuliyollal's Vow of Resolve Wuk Lamat to discover both the ruin and the carnage left behind while also finding no trace of their friends even among the dead.
For nearly 150 years the destruction of Ubbin Falls had been a mystery for the people of Hydaelyn, especially since it connected to the sudden disappearance of the Warriors of Light. And yet, it was a mystery that refused to be solved for a almost a century and ahalf, even with the through efforts of the former members of the Scions of the Seventh Dawn, only able to come to the conclusion that what happened to the town, the massacre and the kidnapping of their friends, was likely the result of offworld forces, as the evidence and damage could only be done by weaponry beyond the technology they had access to with it being more similar in makeup to the plasma weaponry of the Terran Empire and United Galactic Federation, yet the residue of the weapons left behind did not match either superpowers weaponry, nor did it match any other significantly advanced interstellar civilizations or groups active at the time the massacre and kidnapping occurred.
It wasn't until the Axis of Empires, and in turn Alliance of Nations, involved in the, by then, 52 year old war between the United Commonwealths of Worlds and Empire of the Heartless in 160 AXC (1420 NE) did the mystery of the attack and the kidnapping of the Warriors of Light came to be revealed. Combine weaponry matched the weapons residue in the ruins of Ubbin Falls and with that knowledge the former Scion deduced that the Combine also had a hand in the kidnapping of the Warriors of Light, and possibly a different set of heroes as well, although the question of why they did so and not outright conquer the Malica Universe back then in the first place as they are known to do so, especially back then, bringing just as much question as it did answers.