I came across this on Tor.com - This link will take you directly to the post so you can read it. The Stranger 
 It was a super quick fun read and really gives you a close look at Galen as a youngster. I have to admit I didn't think Rayna's personality quite matched how she is in Of Poseidon and Of Triton but it was an excellent short read. I LOVED the cover art - but Rachel's hair is supposed to be black and that cover though beautiful in its orange color doesn't fit her character. 
 This is a nice quick fix for any fan of Anna Banks and her Syrena books. Of if you haven't yet read the books - try this out and see if you'd like her writing style!