"Phew... last mile."
Drawing his forearm across his forehead, Zack tried to clear the sweat out of his eyes. He had to invest in a headband one of these days. 
This was his favorite part of the day. Wandering. Every day he took a new route through town or the nearby forest, taking in new sights and trying to find more interesting things in old ones. This time, he walked through an old tunnel, one he often stopped in for a while to look at the different graffiti art placed here and there. It was always changing, with a new addition every day or some older one painted over. This time there was what seemed to be an extremely meticulous piece of what seemed to be an academy. It was the most detailed he had ever seen. 
Feeling drawn to the piece, he began to look for a name, or a signature hidden in some corner. When he put a hand up to it to lean over and look for a name, he was startled when it met no resistance, and simply kept going. He lost his balance and fell through... though he could have sworn he was sucked in. Then he was falling. He frantically tried to right himself and land on his feet, and he nearly succeeded, breaking the fall with his heels, bouncing off them, and landing solidly on his behind. 
A bit dazed, he tried to take note of his surroundings and came to a strange conclusion. He somehow was in the picture. The only difference was that there were others here, too. Getting to his feet, he put on a weak smile and waved.
"So... hope you guys didn't mind me dropping in..."