The Ruby in the Smoke

Description (from PBS): Orphan Sally Lockhart (Billie Piper), schooled by her late father in shooting, bookkeeping and Hindustani, puts all her spunk and savvy to use inquiring into her father's mysterious death. A cryptic letter advising her to beware of the "Seven Blessings" starts Lockhart down a harrowing path where she must brave assassins, opium dens and a homicidal crone, Mrs. Holland (Julie Walters). JJ Feild also stars in this adaptation of Philip Pullman's Victorian-era thriller.