The Croatoan
Alias: The Other Oppenheimer
Origin: Trinty Desk Project
Gender: Male
Height: 6'2
Status: Invisible
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The Croatoan, also known as the Other Oppenheimer, is the main antagonist of THE TRINITY DESK PROJECT. He is an invisible entity that was created by the Trinity Test in July 1945 that presumably has god-like powers such as time and dimensional travel..

THE TRINITY DESK

The Croatoan first made himself known when two dead children were found inside the trinity desk, the first invisible object. Although the culprit was never confirmed, the words "Croatoan" could be seen in both of the dead children's wrists, implying that The Croatoan was the murderer. Seemingly hundreds of suspects were identified, but it's unknown if anyone was ever charged. The Croatoan may have made an appearance 355 year earlier when The Roanoke Colony went missing in 1590.

It's revealed that all the settlers had been turned invisible by a "natural nuclear reactor." The origin of the reactor is unknown, but the words "Croatoan" could again be seen carved into a tree, again implying The Croatoan's involvement. Afterwards, a video from 1945 is shown, claiming to be "the first sighting of The Croatoan." The Croatoan is last seen in photos with Oppenheimer, including one where he is right to him, with Oppenheimer frowning and The Croatoan smiling.

Credit to the Monument Mythos Wiki, and Villians Wiki for Content here