Batman's Great Escapes Month, Day 31: Batman says goodbye

Panels from Batman: The Dark Knight (November 2011 New 52 series) #17 (April 2013), script by Gregg Hurwitz, pencils and inks by Ethan Van Sciver, colors by Hi-Fi, letters by Dezi Sienty
Special End-of-the-Month Bonus Links!: Check out these riffs on Batman's Great Escapes by the titanic Ty Templeton and the devilish David "Dumbing of Age" Willis!

But sadly, this feature now has to disappear into the dark (k)night. What's in store for September, you ask? Could it be a month full of...Professor X's Shiny Bald Head?!?*

*No.