The paper deals with the unknown facts related to the pages from the life of the Soviet writer Haji-Murat Magometovich Muguev. In his novels, stories, articles and verses have found a wide reflection the events closely tied with the Word War I in the Middle East, as well as the Civil War in Russia.
The article attempts to analyze the detected, unknown facts of his biography about that period in the life of the writer when he served as a translator in the Expeditionary Cavalry Corps of General N. N. Baratov in Iran, during the WWI. The comparison of this fact with the events, described by Haji-Murat Muguev in his well-known novel "To the Banks of Tigrus" (later it was reedited and republished by him under the new title "Baghdad Gates") – makes it possible to argue that Haji-Murat Muguev personally took part in the famous cavalry raid of V.D.Gamalei's Cossack detachment from Iran to Mesopotamia to join the British troops, in 1916.
As it turns out, long before the beginning of WWI, at the Intelligence Department, affiliated to the Staff of the Caucasus military district had been working as a clerk Afanasii Grigory'evich Muguev who had two sons. The eldest's name was Nicholas, and the younger's - Boris. Both of them worked in the same Department as Military Intelligence officers.
According to the member of the Intelligence Department from the Caucasus military district Staff-Captain K.N.Smirnov, who was closely familiar with A.G.Muguev, his son Boris Muguev later became known as a writer Haji-Murat Muguev. So, "Haji-Murat" became his literary pseudonym while, as it seems to us, this Moslem name was previously used by the Staff of the Caucasus military district as a cover for him to carry out his Intelligence mission in the Caucasus front. After all, it wasn't accidental that the invented name of his hero in his novel was the same as his own – Boris!
Thus, the analyses of the information, including a valuable archival source on his biography, as well as his novels dedicated to his military past, let us to argue that his name "Haji-Murat", like his middle name "Magometovich", was not only his literary pseudonym, but an assumed name of the Russian Intelligence officer Boris Afanasievich Muguev.
