Georgette Heyer’s 1936 novel may be propelled by the French revolution, a stolen ring, and an English nobleman wrongfully accused of murder, but adapter Christina Calvit focuses on his rescuers–among them two charming young viragos enamored of Ann Radcliffe’s shivery thrillers. The results make for a tea-and-swashbuckling romp even more giddily playful in this revival than it was in Lifeline Theatre’s 1996 premiere. Kevin Gawley’s labyrinthine set, Elizabeth Powell Shaffer’s fairy-tale costumes, Victoria DeIorio’s rousing incidental music, Geoff Coates’s exhilarating fights, Ann Wakefield’s perfect dialects, and Dorothy Milne’s nimble cast deliver lighter-than-air intrigue sure to please romantics of all ages. Through 12/11: Fri 7:30 PM, Sat 4 and 8 PM, Sun 5:30 PM. Lifeline Theatre, 6912 N. Glenwood, 773-761-4477. $24-$26.