Monty by Jim Meddick for June 13, 2016
Transcript:
What are you looking at? A blank area on the map. I suspect it was drawn in invisible ink... And all trick... If the ink is an organic compound, we should be able to reveal it by warming it and... Hey! Some letters are appearing! You're... Holding... The... Map... Too... Close... To... The... Get some water!!
Good gag. But it would have been funnier if panel three had shown the letters on the actual map, rather than just showing Monty reading them.