Between 7 and 8 a.m.[1]Diagon Alley was not very busy at the moment he arrived back from his
run. He knew it wouldn't be a good idea to jog around the Alley because of the cobblestone streets, so he had woke up extra early and hailed a cab to take him to a nearby muggle park. There he ran for at least an hour before deciding that was enough for today and began to head back. He paid the driver when he was close enough, slipped down an abandoned alley way and apparated back to the Alley. He knew his appearance wouldn't be the best right now, but he decided to take advantage of a less crowded Alley and look around.
Ace hadn't been in Diagon Alley since he graduated from Hogwarts almost ten years ago. So he was curious to see what was new and what was still there from his school days. He was interested in a few new shops, but saw that the ice cream shop was still there. It had been one of his favorite places when he was a school kid, and he was glad it was still here. Standing in front of the bookstore, he thought for a moment before deciding to go in.
He stopped near the shelves of the books on all manner of creatures, mostly to see if there were any new ones that he did not have. He'd tried to buy the new ones as they hit the shelves, but it was hard to keep current when you are on a reserve with limited exposure to the world beyond the boundaries of the reserve.
He turned around the corner and bumped into someone. He didn't look up to see who it was, but he mumbled an apology and hoped that it would suffice as the book he held in his hands was beginning to catch his interest. Of course it would, it was on his favorite subject in the world.... dragons. He made his way distractedly towards the counter, briefly looked up to pay the cashier and then headed back out of the shop and found himself leaning against the outside of the shop, fascinated by his new book on dragons that all thoughts of who he had bumped into had left his mind.