How does the Aegis work

[OneShot]

I am currently very busy, and go at it perhaps tomorrow. Just one quick thing:

@David_Chart

An active supernatural effect created by an entity that is not native to the Aegis must also Penetrate a Magic Resistance equal to the Aegis's level on crossing the boundary, or it is cancelled. If the entity carrying the supernatural effect (the target of a spell, for example) has Magic Resistance, the Aegis must Penetrate that resistance to have that effect. This also affects Hermetic effects such as Parma Magica, Longevity Rituals, Familiar Bonds, and Talisman bonds. However, the Aegis must Penetrate the magus's Magic Resistance to cancel these effects.

I was quite sure, that the Aegis did not affect a Parma Magica. Also because of:

@David_Chart

Does an Aegis of the Hearth, in your estimation, dispel a Parma Magica?

No.