 The following years he travelled through Europe constantly and the result was two more books on the Russian revolution, "What is left of the Empire of Tzars", published in 1931, and "Juan Martinez who was there", published in 1934 which tells the story of a Spanish dancer who was caught in Russia during the 1917 revolution.In 1935 he published one of the best ever written books on bullfighting, "Juan Belmonte, matador de toros, su vida y sus hazañas", which was translated into English (as "Juan Belmonte, killer of bulls") and French.When the Spanish civil war broke out in July 1936 Chaves supported the cause of the Republic and stayed in Madrid even if "Ahora" was seized by a revolutionary committee; but when the republican government abandoned Madrid and fled to Valencia he, like many other Spanish intellectuals, felt forced to leave Spain, horrified by the political repression practiced by the socialist, communist and anarchist militias.