Mk. 1:12 And immediately the spirit driveth him into the wilderness. (There are parallel verses in Matthew and Luke that are no different.)
Jn. 1:35 Again the next day after John stood, and two of his disciples...
The Skeptics want to know, where was Jesus after his baptism? I don't see a need to raise the question. The baptism of Jesus is only referred to in the book of John (1:29-34). The event itself is not transcribed for us there, as it is elsewhere.