All the Different Shades of Blue — W.R. Gingell

It's a routine day and a routine job for wheelchair-bound merman Marazul. Just hack into the protective spell around a café and lace it with an encouragement to spend more.What Marazul doesn't know is that his employers don't feel like paying him.Or that the person who put the protection on the café has a particular reason for wanting to keep that café safe.Or, for that matter, exactly who it is who has just entered the café…ALL THE DIFFERENT SHADES OF BLUE IS A NOVELETTE IN THE CITY BETWEEN SERIES, BEST READ BETWEEN BOOKS 6 AND 7.