To catch a star

Mercury set up in the late afternoon, before he lost the sunlight. He set up some boards for people to work on, as well as a stack of parchment and charcoal for writing. He set up a small, controlled fire for light to work by, and then simply sat back on the grass and bided his time. 

This land was perfect for what he wished to demonstrate, with a long and unbroken line of sight to the stars. Once the evening grew late, and the sun began to vanish, he tilted back his head and gave a summoning howl. Calling to any who wished to learn a little more about the stars, and making star charts.