"The Gospel According to Mark..., the second book of the New Testament, is one of the four canonical gospels and the three synoptic gospels," according to Wikipedia. "It tells of the ministry of Jesus from his baptism by John the Baptist to his death and burial and the discovery of the empty tomb.
"Jesus is ... the Son of God, but He keeps his identity secret, concealing it in parables so that even the disciples fail to understand. All this is in keeping with prophecy, which foretold the fate of the Messiah as Suffering Servant.
"The Gospel ends, in its original version, with the discovery of the empty tomb, a promise to meet again in Galilee, and an unheeded instruction to spread the good news of the resurrection.
"Traditionally thought to be an epitome (summary) of Matthew, which accounts for its place as the second Gospel in the Bible, most scholars now regard it as the earliest of the gospels. Most scholars also reject the tradition which ascribes it to Mark the Evangelist, the companion of Peter. ..."