Gronk was rescued with the Talon, the first ship captured by Esmerelda and the Guardian. How he came to be a slave among the dragonborn is a tale he has yet to tell. Suffice to say that he was acting as engineer aboard Talon when she was captured. Seeing a Goblin for the first time did not stop Esmerelda from reaching out and offering a hand in friendship. Gronk agreed to stay on as engineer and has since become a key member of Esmerelda’s burgeoning rebellion. His knowledge of the operation of the skyships has been invaluable and he has found a new home among the vale folk.