Planet Dismolle is supposed to be a peaceful haven. So what's with all the gunfire?A criminal gang has moved into Chirless, Dismolle's second major city. Elderly residents are fed up with the loud music, noisy cars and late night parties, not to mention hold-ups, muggings and the occasional gunfight.Chirless has no Peace Force, so Harriet Walsh of the Dismolle City branch has to help out. That puts her up against a gang of hardened criminals with only her training pistol and a few old allies to lend a hand.And these allies aren't just old, they're positively ancient!Sierra Bravo is the third novel in the Harriet Walsh series. Peace Force and Alpha Minor are already available in print and ebook.