Matthew K. Manning 
Greener on the Other Side [PDF ebook] 

While in New York City, Batman, Robin and Batgirl team up with the Teenage Mutant Ninja Turtles. First order of business: defeat Poison Ivy’s mutant monster Snakeweed. But meanwhile, the Joker, Harley Quinn and Shredder are plotting something even more monstrous! BATMAN and the TEENAGE MUTANT NINJA TURTLES collide in this one-of-a-kind comic series. Along with high-impact art, these fast-paced stories will be a hit with readers of all ages.