This started as a question in a Facebook group, and I don’t think I got a RAW answer... to understand the question, it’s important to read the errata for p.155 of the Keeper’s guide. This is the scenario:
Imagine that John Smith has Max Sanity 45 and current Sanity 45 (he’s been around a bit!). John reads Al Azif and gains 6 CM. His max Sanity reduces by 6 which means that his Sanity also reduces by 6 (they were the same). John succeeds on his Intelligence roll. This means that before we’ve even got to the usual Tome sanity loss, John has a bout of insanity!
So.... is the above correct and is John immune from the normal Tome Sanity loss because he is now in a bout of madness?
The crux of the question is understanding if the SAN loss due to the Max SAN reduction triggers the normal Temporary Insanity rules...
Does anyone have a RAW answer for this???