On 11 July, Coster arrived in Berlin, where he stayed with Debye. The following morning, Meitner arrived early at the KWI for Chemistry, and Hahn briefed her on the plan. To avoid suspicion, she maintained her usual routine, remaining at the institute until 20:00 correcting one of the associate's papers for publication. Hahn and Paul Rosbaud helped her pack two small suitcases, carrying only summer clothes. Hahn gave her a diamond ring he had inherited from his mother in case of emergency; she took only 10 marks in her purse (equivalent to €40 in 2021). She then spent the night at Hahn's house. The next morning Meitner met Coster at the railway station, where they pretended to have met by chance. They travelled on a lightly used line to Bad Nieuweschans railway station on the border, which they crossed without incident; the German border guards may have thought that Meitner was the wife of a professor. A telegram from Pauli informed Coster that he was now "as famous for the abduction of Lise Meitner as for the discovery of hafnium".