Why are there pixies, etc. on the First but not the Source?

[sidurgu-12]

Indeed - a beaver appears inexplicably in an Old Sharlayan quest and, the Sharlayan researcher studying it is perplexed about it (it's given no explanation as to where it came from).

And it appears the mystery is further deepened when it's shown that the Ancients, once again, had something to do with it, as a pixie appears during a certain sidequest later on in Elpis, with the bewildered Ancient researcher assigned to it having no idea who created it or where it came from, suggesting a lack of accompanyning paperwork of it's concept.

And it even turns into a beaver too, that the WoL immediately realizes, and the even more incredulous researcher basically throws in the towel and says in defeat "Now let us never speak of this again," so it's clear the Ancients just... swept it under the rug, leaving the mystery ultimately unsolved.

So, once again... "something something Ancients" are the cause.

It kinda works here since the whole thing is off the wall but... Im getting tired of "because ancients" lol.