The Time Thief

Sabrina from birth was raised in a rich neighborhood with pretty much all of her heart's desires. Until of course, something had happened to change all of that. Since she was six, she has being moving around from place to place since the 'accidental' burning of her house killing both her mother and her father leaving her in the custody to her father's uncle that she never knew she had. Everything has been crazy since then. Turns out her uncle had the occupation of being a thief stealing items that have been stolen from others. Being around this from her early childhood, she had learned the art of stealing along with many other skills and information... During recent turns of events ,that the burning of her childhood home might have not been an accident after all. Her father in addition might have not been just a scientist but a government official working on something top secret in that lab he had that the government wanted.

Who had found this information and what did they get from burning the laboratory down? What was her father working on to cause this outburst against their family?