Pachulski then advised that even his own relationship with his mother-in-law had changed greatly and he could no longer be an intermediary between her and Tchaikovsky. He returned Tchaikovsky's letter of 6 June, presumably to prevent von Meck or her family ever seeing it and becoming aware of his machinations. This was the last contact Tchaikovsky ever had with Pachulski or with Nadezhda von Meck or her household (other than his niece Anna).Poznansky, p. 528
