 Nyorai kupfuurira kweiyi ndima - Efron akazvipira nokuda kwechiuto muna 1914 uye pakasvika 1917 akanga ari mukuru mukuru akagadzwa muMoscow ne56th Reserve. Muna Gumiguru 1917, akapinda muhondo neBolsheviks muMoscow, akabva ajoina White Army ndokutora chikamu muIce Marchuye kudzivirirwa kweCrimea, apo Marina akadzokera kuMoscow achitarisira kusanganazve nomurume wake. Munguva iyoyo, zvisinei, ukama pakati paEfron naTsvetaeva hwakanga hwakamanikidzika zvikuru nokukurukurirana kuduku zvikuru pakati pavo vaviri. Efron akanga achinyanya kuodzwa mwoyo neizvo ainzwa kuti kwakanga kuri kuchinja kwakanga kusingatsigirwi zvikurukuru navanhu veRussia, kutaura kwacho kwakafuridzira Dawn on the Rails yaTsvetaeva. 