This book on the Congress Radio of 1942 is a thrilling and moving account of how a daring underground operation was conceived and carried out, and of how it was busted by the colonial police. It is meticulously researched, drawing on a wide range of primary sources. At the centre of the story is the remarkable figure of Usha Mehta, a slight, slender, twenty-two-year-old freedom fighter of exemplary courage and resolution. The book deserves a wide readership, within and beyond the academy.