This study assesses the effects of Serbian "Macedonian Struggle" over the making of the secret society, popularly known as "Black Hand." Building on the existent literature, by using memoires, court records and sources from diplomatic correspondence, the articles traces a decade of metamorphosis of secret society of officers from the 1903 May coup until the end of Balkan wars 1913, emphasizing the previously neglected Macedonian aspect, deemed here crucial for understanding the functioning of the society and its relation to the Serbian state.