Will have to work on advancement... T-T
There's something here:
I can't recall if I wrote more. There must be, since this is "In short", but I must go now
Sounds perfectly fine to me, although maybe this could be achieved with base 5.
I feel that maybe the target could get a kind of resistance roll, since he has the desire to speak the truth, but may know this is a bad idea (sometimes, we don't follow our emotions). Like, if someone knows his loved will be killed if he says the truth, he may lie, even if he loathes it.
I feel though that a target could "resist" the spell and lie, but, due to the spell's influence, have difficulty to lie finely, thus having his guile suffer a penalty.
Maybe we could base this on "vision of the infernal terrors"? With a reduced ease factor if you use the Base 5, and the penalty applying to Guile?
What do you think of it? Just random thoughts.
Also, I've got Wizard's Communion 20. You should learn it too. Someone else got it, IIRC, so this'll help with Aegis 
By write, you mean "learn", I suppose?
Related ability... There are not many related abilities... Destroying things, metal... Something forge-related, maybe, but this'd be utterly useless to you. So yes, penetration, or finesse.
As per the rolls, I trust you, lucky bastard 
congrats!