My dad once said to me, "You give a lot of books three stars." I do.
I don't know what happened. I enjoyed the first 100 pages I read, but I now have zero interest in reading any more. I might give it another try at another time. The story just didn't grab me the way Mr Penumbra's did.
I did like the little nod to Mr. Penumbra's, but it made me question the timeline in the novel (I'm pretty sure from Lois's age and the DS mention it has to occur in 2017... but I could be wrong).