WtSA Naghaluu
This book was really well written. It's about the dire wolves and how they played into (or not) the Garou nation. Mainly, they were the force behind keeping the Wyld in check during the Savage age. They had some gifts that were similar to the modern Garou, but most of them were unique to them. While they look like the Garou, they are a different species. They didn't have much contact with Garou other than the Ur-tribe, the tribe before the three brothers of the pure lands.
I hadn't read any of the other Savage age material, but I think this one was able to stand out alone. It's very straightforward book and I think you'd be able to play one of the dire wolves straight from it, just they intended. I would strongly suggest reading this book if you're going to be running savage or even if you're interested in dire wolves. I think this book was an excellent read and explains a lot about several of the other Fera as well. And also has new totems, talens, and merits and flaws. Great book, I recommend it.
So to piggie back off of Ghostpaw. Below is listed my review from the Vault.
C. Grant Rose
BLUF: Buy this book at least for the readability of the work. It is by far the most interesting work so far presented in the Savage Age line. Focused on the Were-Dire Wolves as they existed in the Americas, the book adds a lot of depth to the concept that the Wyld is the member of the Triat that's messing things up in the era. The details of the War of Many Teeth and how it had modern day ramifications are also interesting and makes perfect sense. If an update for this book occurred that brought in more Savage Age lore, this book would be a steal $8. It only needs a few small tweaks to really turn this Tribebook into the best Savage Age product.
Now for the criticism: The book suffers a little from it being an early book of the Savage Age and currently has minimal crossover with the other Savage Age books. I also think that some players might be a little turned off from the way aspect gifts are treated, but I personally think they make sense and add to the uniqueness of this Fera.