Shang Tsung
In Jeff Rovin's 1995 non-canon "Mortal Kombat" novel, Sonya infiltrates the Black Dragon by working undercover as a criminal named Gilda Stahl. Her mission was to let them lead her to Shang Tsung—who had hired them to find an amulet hidden somewhere in China—although she had a personal interest in apprehending Kano as he had murdered her fiancé several years earlier. Both the journey and her mission go south after the unexpected intervention of Raiden, Shang Tsung, and Goro, resulting in the loss of her cover and her being abducted by Shang Tsung, but she escapes captivity after foiling a ritual sacrifice presided over by Baraka, then inconclusively fights Kano near the conclusion before he evades arrest.