77 Underground by Kat Richardson

This series is really getting better.  Harper isn't an uberheroine with her great superpower. She is doing some therapy to get over injuries from the previous books. This one has the supernatural mixing it up with the homeless of Seattle.  It mixes legends of the local Indian tribes with non understanding white locals though out the history of Seattle. Harper is just the latest hero to battle this monster. I'm liking the series and I still need to read the next one. 

    Underground (Greywalker, #3)