It is amazing to know that there exists some documents showing correspondence between Jesus and a certain king.
Here it is.
Abgar Ouchama to Jesus, the Good Physician Who has appeared in the country of Jerusalem, greeting:
I have heard of Thee, and of Thy healing; that Thou dost not use medicines or roots, but by Thy word openest (the eyes) of the blind, makest the lame to walk, cleansest the lepers, makest the deaf to hear; how by Thy word (also) Thou healest (sick) spirits and those who are tormented with lunatic demons, and how, again, Thou raisest the dead to life. And, learning the wonders that Thou doest, it was borne in upon me that (of two things, one): either Thou hast come down from heaven, or else Thou art the Son of God, who bringest all these things to pass. Wherefore I write to Thee, and pray that thou wilt come to me, who adore Thee, and heal all the ill that I suffer, according to the faith I have in Thee. I also learn that the Jews murmur against Thee, and persecute Thee, that they seek to crucify Thee, and to destroy Thee. I possess but one small city, but it is beautiful, and large enough for us two to live in peace.
Even more amazing is that Jesus replied:
When Jesus had received the letter, in the house of the high priest of the Jews, He said to Hannan, the secretary, "Go thou, and say to thy master, who hath sent thee to Me: 'Happy art thou who hast believed in Me, not having seen me, for it is written of me that those who shall see me shall not believe in Me, and that those who shall not see Me shall believe in Me. As to that which thou hast written, that I should come to thee, (behold) all that for which I was sent here below is finished, and I ascend again to My Father who sent Me, and when I shall have ascended to Him I will send thee one of My disciples, who shall heal all thy sufferings, and shall give (thee) health again, and shall convert all who are with thee unto life eternal. And thy city shall be blessed forever, and the enemy shall never overcome it.'"
Source http://www.newadvent.org/cathen/01042c.htm Just goes to show that you may find some amazing stuff when you crack a book.