What professional news does Persse receive at the party in the penthouse?

Persse bumps into Felix Skinner, the literary agent, at the penthouse party's buffet, and greets him coldly after having discovered that his outline was lifted by Siegfried von Turpitz and presented as his own in Amsterdam. Skinner, however, asks Persse if he received his letter, which he hadn't, and Skinner tells him that they solicited a second opinion on the outline, which was favorable, and are planning to publish his book after all.