Looking for fics

[mojaunicorn]

Hey there :)

I was wondering if anyone has links to those fics:
1. The Invisible E by Rhiannonhero
2. Perceptive Evolution by Megs
3. Accidental Voyers by Jag1686
4. 'Do You Know My Son?' where Joan finds out that Brian is gay (don't know the author)

I would be realle grateful if you helped me find this fics. I tried googling them but to no success.

Thanks in advance :)