An excerpt from The 25th Hour:

An Excerpt from The 25th Hour (Book One in The Adventures of Mackenzie Mortimer):
The tremor shook Mackenzie from his reverie. He gazed up to see the space ahead of him billow and fold, as if he were viewing it through a smoky haze. A figure hurtled toward him, seemingly coming from nowhere, and landed at his feet.
Mackenzie dropped the broomstick in surprise. “Are you all right, mister?”
A wrinkled, liver-spotted hand pushed against the pavement, propelling the figure to his feet. He stood, st...