In 1934–1936, "The Complete Bunin" in 11 volumes was published in Berlin by Petropolis. Bunin cited this edition as the most credible one and warned his future publishers against using any other versions of his work rather than those featured in the Petropolis collection. 1936 was marred by an incident in Lindau on the Swiss-German border when Bunin, having completed his European voyage, was stopped and unceremoniously searched. The writer (who caught cold and fell ill after the night spent under arrest) responded by writing a letter to the Paris-based "Latest News" newspaper. The incident caused disbelief and outrage in France. In 1937 Bunin finished his book "The Liberation of Tolstoy" ("Освобождение Толстого"), held in the highest regard by Leo Tolstoy scholars.