Called The Lady Astronomer, the YA steampunk book is available in the UK and USA.
Here's the blurb from the publisher Untold Press -
With the help of her brothers, Freddie and Al, and her constant companions Leibniz the Lemur and Orion the Eagle Owl, Lucretia embarks on a journey that could change her life forever. Can she find the strength inside to balance her new life and overcome the obstacles threatening her destiny? Only the stars will tell."
To find out more about the lovely Katy click here to go to her web page.