Chris9417
The night New Mombasa falls is supposed to belong to the Covenant.
Instead, it becomes the point where two universes collide.
When a Dust experiment gone wrong tears Team RWBY out of Remnant, they crash into the rain-choked streets of Earth in the year 2552-right in the middle of the Covenant invasion of New Mombasa. Cut off from Beacon, surrounded by alien forces, and hunted for their strange "anomalous energy," Ruby, Weiss, Blake, and Yang are forced to adapt to a brutal kind of war where there are no Grimm... only plasma fire, glassed cities, and soldiers who die quietly in the dark.
One of them is the Rookie-an Orbital Drop Shock Trooper who wakes alone after a disastrous drop, searching the ruins for his scattered squad. Silent, haunted, and newly baptized by fire, he finds unlikely allies in four huntresses who fight like nothing he's ever seen. Together, they navigate shattered streets, underground data hives, and Covenant strongholds, forging bonds in the middle of a city that's already been marked for destruction.
But the deeper they go, the clearer it becomes that RWBY's presence is no accident.
Hidden within Forerunner ruins lies a secret etched across time itself: Remnant was never just another world. Aura, Dust, Silver Eyes-echoes of ancient human experiments, safeguards against the Flood, remnants of a civilization desperate to survive extinction. As the Covenant races to activate a portal capable of reshaping the war, Ruby Rose becomes the key to a choice no one should have to make.
Go home...
or change the fate of two worlds forever.
Set during the events of Halo 3: ODST, Echoes of Remnant is a gritty sci-fi fantasy crossover about found family, silent heroes, cosmic legacies, and the cost of survival when hope falls from orbit.