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- “ We call Ephemeris, the Creature Collector. And it's been around for over a hundred years. Snatching the universe's most dangerous beasts and bringing them here, to our planet. ”
- ―Old Tharpod telling Ratchet, Clank, Qwark and Nefarious about Ephemeris [A4O]
Ephemeris was initially a small sentry drone created by Dr. Croid in the wake of his associate Nevo's supposed betrayal, theft of Croid's Protomorphic Energy Extractor and kidnapping of Croid's pet Mr. Dinkles (who, at this time, was under the possession of the Loki Master). Croid gave it one mission: to find Mr. Dinkles and Nevo. However, at an unknown period of time, the Loki Master found Ephemeris and forced Nevo to modify Ephemeris for interstellar travel. He also had Nevo build him an army of robots called collectors (or Minions). With this, the Loki Master used the machine to travel the galaxy, capturing the most dangerous predators in the galaxy and bringing them to Magnus. He wanted enough creatures for him and his kind to use as hosts so that they could spread across the galaxy to cause havoc. This plan worked for over a century, and the Ephemeris collected over 22,000 creatures around the universe (like if the Ephemeris captured a creature every two days since its creation), to bring them on Magnus.
Creatures Ephemeris is known to have Captured
- Light Eating Z'Grute
- War Grok
- Stellar Leviathan
- King Sepiad
- Numerous Critters
Worlds and Moons Ephemeris Collected Creatures From
- Ebaro including the Black Rock Moons of Ebaro
- Rykan V
| "Do I even want to ask what he's doing here?"
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