Frank Sinatra's new biographer is hoping his "love story" to the late legend will gain him access to a top secret vault full of Ol' Blue Eyes' private letters.
James Kaplan's new book Frank: The Voice has been warmly received by critics and fans alike and the author is hoping the singer's family also approves - because it might just help him get close to the holy grail of all Sinatra stuff.
Sinatra's children politely declined Kaplan's invitation to be interviewed for the tome and instead the journalist spent five years researching all aspects of the crooner's life, paying particular attention to his singing skills and the songs he recorded.
The book only deals with Sinatra's life up to 1954 and now Kaplan is planning a second book to cover the rest of the singer's career up to his death in 1998.
And Kaplan hopes his meticulous research will curry favour with the Sinatras and allow him access to the family's keepsake lock-up.
He tells WENN, "There is said to be voluminous archives buried in a vault under a mountain in Nevada, which belongs to the Sinatra family.
"I would imagine this would be full of letters between Frank and his wife Nancy, between husband and wife. They were both letter writers. I've seen letters Nancy wrote about Frank's business to Columbia Records, I've seen letters that Sinatra wrote to acquaintances and friends in the 1970s and 80s simply because these people, of course, kept those letters. He was wonderfully articulate and humorous, smart and witty.
"I would guess that the Sinatras own reems and reems of letters.
"I have my tentacles out there. I know a lot of people who know the Sinatras and I've heard little whispers that they may not think that this is such a terrible book, and that is high flattery."