 The letter, written in Serbo-Croatian, empowers Princess Vladanka Donevich, a Croatian aristocrat, to secretly negotiate with a foreign power over the rights to Yugoslavian forestry interests.When Carla returns, once more demanding Wolfe’s help, she shocks both Wolfe and Archie with a revelation — Neya claims to be Wolfe’s long-lost daughter, and has an adoption certificate as proof.Although skeptical, Wolfe admits that he adopted an orphan girl during his military service in Montenegro but lost contact with her during the political upheavals following the First World War.