Sunday noon
He had arrived again at seven , Saturday , and was very much surprised that the signorina had not yet returned . He had waited till nine , when he left , greatly disappointed . He was the Barone di Monte-Verdi in Calabria , formerly military attaché at the Italian embassy in Berlin . Sunday noon Mademoiselle Fournier had notified the authorities . She did not know , but she felt sure that the blond stranger knew more than any one else . And here was the end of things . The police found themselves at a standstill .