Kaspar Hauser

 was the primary product of House Arpexia's jungle children project.

He was planted as an infant on Earth at Nuremberg in 1828. Within three weeks of socialisation into human culture, he was able to read, count, write, and play a harpsichord. However, all of these accomplishments were considered trivial by Homeworld analysists, who could achieve the same proficiency with an hour of high-intensity neural training. Even as a child, he exhibited some biological hypersensitivities common to Arpexia members, which garnered significant attention. In 1833, the project was deemed a failure and he was excised from the local timeline via dagger wound.

Overall, Kaspar Hauser was unaffected by his time spent on Earth, but he left a large effect on local human culture: in response to his presence, Germany split into hostile parties, and many claimed that he was the Crown Prince of Baden. His name later inspired the Hauserkinder, despite that, as a jungle child, he represented something completely different. (PROSE: The Book of the War)