Sidney writes Juliet and says that according to Billee Bee's research, Oscar Wilde did visit Jersey in 1893, so it's possible he stopped in Guernsey. He's sending a handwriting analyst with some of Oscar Wilde's other letters. Isola then writes to Sidney. She believes the letters were written by Oscar Wilde and thinks that Granny Pheen would be so happy to have people interested in her letters. Isola says that she's not going to let anyone take the letters away; she's going to keep them in Granny Pheen's biscuit tin. She gives Sidney permission to publish the letters provided he lets Isola write the preface. She wants to buy a motorcycle with a sidecar with the royalties.
If the letters are Wilde's and if Sidney does publish them, that will mean that many more people will be able to share in Granny Pheen's story and apply it to their own lives. In this way, Wilde's small kindness to Pheen will be able to go on for years to come, thanks to publishing and the connections that Isola formed with both Juliet and with Sidney.