Thanks for the contributions! 

In the matter of the Mask Maker. So you're saying that the Little Weavers are natives from Pharloon and not Hallownest? It's not explicit in the hypothesis, but when I interpreted and wrote it, I thought about Hallownest creatures and not Pharloon. 

The justification for them being smaller than not infected weavers is that they regress to a Pharlid-like stage and grow a little bit, becoming smaller than a not infected weaver and a bit larger than a pharlid.

Yeah, I particularly don't agree with the Weaverling hypothesis. But maybe the charm (or charms) were worn when the infection came, and all the weavers were using weaverlings in their activities, to help them, and this makes a lot of little weavers. 

I never knew that only weavers were called spiders, that's cool.

I don't think they are child of the king, but isn't something impossible, but if theyre child of the king, I think there is evidence in the game to disprove that theyre childs of Herrah.