Baen Books https://www.baen.com/dragons_hand
Jane needed to find her daughter and she needed a little luck to do so. And luck was the grand prize in the card game in Gideon's Saloon - all kinds of luck. But Jane also had to be careful not show her dragon form because there was a high price-tag on dragon's blood. She was between a rock and a hard place and all she needed was a little luck...