I just got my eagerly awaited copy of Ancient Magic. I love the feel of mystery and antiquity in the material, but it appears that some stuff missed the book.
Where are the systems for using the Adamic language? The book mentions something about being able to incorporate the original language into spells in order to gain a Penetration boost, but no systems are provided.
Also, several Virtues are mentioned in the chapter about Grigori magic, but those flaws are nowhere to be found.
Other than these (quite large) flaws, the book seems very well-done so far.