Just as things were starting to quieten down on the Babbington/vandal/wall artist front, lo and behold! I stumbled on this new one in the town of Swimp. It was still fairly wet, so our imposter couldn't have gone too far.
I feel the net may be closing in - who knows, the true identity of this so called 'Babbington' may be revealed very soon... ;)
In case you can't make out what out phantom scribbler has said, it's ''Babbington Is Back!''