Jaestra Gelabraes was born into a minor noble family in the city of New Stetven. Her parents eager to make her the pride of the family, so at a young age they got her a fighting instructor. Their aim, to make her an honourable warrior and leader of their family. Her instructor was upset when he realised that fighting with a Sword and Shield was not what Jaestra was good at, how could she protect herself from anyone who wished to cut off the head of the family without a shield? He went to her parents and told them his concerns and they listened, instead of fighting they began to teach her etiquette and how to be a lady. But the damage was already done, she now pined for the feeling of battle.
So at night times; when her parents thought she was asleep, she would go to the local guard house and train with them (in disguise of course) and go with them on their patrols. They used her keen eyes to their advantage and due to her they managed to solve many crimes and fights before there was any serious trouble. She even worked under cover quite a few times in groups of thieves. It was her job to infiltrate them, learn where they would strike next, inform the guards and bring them down from the inside. On occasion she had to fight with the guard, but she never truly hurt them and always apologised afterwards. After a few months of this she had begun to understand the seemingly alien language of the thieves, but just as she was getting good they found out that she was the one selling them to the guard. She was unable to work under cover any more in the city after that, as all the thieves and bandits knew her face. But she still kept all the experience from those times and still helped catch a few bands, after she returned to normal duties. She was allowed to keep the wages that earned for being under cover and her parents never found out about that part of her life.
She worked with the guards for 7 years before her family realised that she was not sleeping and tracked her down. When the guards found out she was a noble they were shocked, but still invited her to come back and serve with them again. They even promoted her to a lieutenant. But her family were not happy about it and forbade her to have anything else with combat.
But when she heard that the sword lords were looking for brave people to travel into the Stolen Lands to tame it ready for a kingdom, she could not refuse. She begged her parents and they finally gave in and gave her their blessing to go. But only if they could give her some money, so that she could buy some adventuring gear, so she would be safe. Also the thought of having a Gelabraes in a new kingdom, where they could be a main noble house ... the offer was just too tempting.
Once the application had been sent off, they began to do some hard studying about the place she would be going and discovered that there were some mischievous fey there. So they spent the remaining time that they had together, practicing on dummies of fey, and learning as much as they possibly could about them. So that when she came across them (if she came across them) she would be ready for them.