The Manal-jarr are said to be a sentient humanoid amphibian Xenos species, who are reputed to have mastered the art of time travel. However there is some doubt, as to whether the species truly exists.
While the Xenologist Janus Draik is among those who do not believe so, he was surprised to learn the Aeldari do. They are currently spending valuable time and resources to locate the Manal-jarr's mythical Homeworld, Naub. Draik, however, questions how such a usually well-informed species as the Aeldari, could have fallen for such a hoax.