Fortune's Eve: a short story of gaslight and magic - Hellion House Steampunk Series, #1

Not all monsters dwell in the woods. The mages of the Conclave have questions-dangerous ones that put airship pilot Gideon Fletcher and his sister, Miranda, in the midst of an inquisition for illegal magic. The Fletchers live in an elegant world of gentlemen's clubs and Society balls, but their claim to fame is making daring rescues in the perilous Outlands. It's all fun and monsters until they save a man wanted by the Conclave, and the mages turn their suspicions toward Gideon's family. Their scrutiny brings a new kind of peril.
Little does Gideon know his sisters have much to hide. Trouble has arrived for the Fletchers, and it clearly means to stay. For those who like steampunk adventure with a touch of magic-not to mention conspiracy, monsters, airships, and an adorable baby dragon.