The Further Adventures of A

The oddly-named hero of this story, A, is bored and wishing something interesting would happen.  When a man emerges from his bathroom mirror, dressed in a spacesuit, and tells him, I need you to come with me.  You're not safe here, A is about to get his wish granted on a larger scale than he could have ever dreamed. Originally written is serialized installments and first published in the online magazine SciFantastic, The Further Adventures of A is a wild chase through worlds, dimensions, and spaces as the Mirror Man ushers A through a series of doorways and challenges, meeting Leonardo da Vinci, monsters, wizards, aliens, and finally God, all leading up to a world-ending crisis with only one man qualified to save the world: our titular hero, A. With shades of E.A. Van Vogt and Salvadore Dali, The Further Adventures of A is both cynical and original with one reviewer saying I was hooked from the first page and couldn't wait to find out what was going on.  There's some great stuff there.