Possibly the most fun ever in a comic crossover story. The TMNTs are experimenting with Fugitoid's interspatial teleportation unit and decide to surprise Splinter with a quick visit to test the unit. Unfortunately, the person working the controls swats at a pesky insect and accidentally sends them to an alternate dimension. The turtles, Casey, and April find themselves in the same New York as the Ghostbusters. And when they come through from their own dimension, they accidentally free an ancient deity that has been trapped in between worlds. What follows is a mix of action, brainiac bonding between Donnie and Egon, and mass destruction as the deity turns two professional hockey teams into his enthralled minions and uses them to try and gain control of the technology back at the Ghostbusters' firehouse. Everyone pitches in with his or her own expertise, fueled by lots of pizza and caffeine, to try and free the hockey players, capture the deity, and return the TMNTs and their friends to their own world.
Fans of either set of heroes will enjoy the collaboration between the two groups - and probably hope to see more in the future. (Caution - there are some PG-rated words in the book.)
I read an e-book provided by the publisher through NetGalley.