Here is the cover of the book "Elvis - If Only We'd Known" by Sandra Richardswhich is set for release September 2005.
From the publisher:
"In the spring of 1974, Elvis received some anonymous letters from a young woman. The letters contained Bible verses, encouragement, and casual conversation.
As the letters continued to arrive, Elvis became piqued with their author. Elvis wanted to know who she was but she always signed her letters with "Your friend, Sandie". Without a return address or last name he had no way of knowing how to contact her. After a couple of months, Elvis received a letter with Sandie's last name and address included on the envelope. Immediately, Elvis decided to repay her for her letters of encouragement and made plans to travel to her home town and surprise her with a visit from him.
Though Elvis traveled thousands of miles and planned and paid for a Christian concert to cover his presence-circumstances prevented their meeting. Three and a half years later, Elvis still had this young woman in his thoughts and wanted to reach her. At his last concert he sent out a message that only she would understand--if she heard it. "