No need for "has." "...with its glass face smashed in" is good.
No need to use "to" in this sentence. "He gestures behind Elizabeth" is good.
I enjoy this ending, but would’ve liked some of the mystery to come in this first chapter. I am a great Sherlock Holmes fan, and Doyle does a great job of serving up delicious mysteries -- especially in the first chapter. For example: http://etc.usf.edu/lit2go/178/the-return-of-sherlock-holmes/3226/chapter-i-the-adventure-of-the-empty-house/
But surely there were no enemies to vanquish, no nasty situations to resolve, within these safe and hallowed halls....
Properly chastised, Eric sat down and finished his gin-and-tonic.
The only other person in the reading room was an untidy, unshaven man huddled in one corner with an apple and a book
eyebrows augmented by several years of no longer caring to trim the damned things back