Double Trouble: An Anthology of Two-Fisted Team-Ups

Batman and Superman. Alien and Predator. Zatoichi and Yojimbo. The Six-Million Dollar Man and the Bionic Woman. Carol Danvers and Kamala Khan. Hercules and Xena. Iron Man and Captain America. Team-ups have been a part of storytelling for as long as stories have been told, from Enkidu helping Gilgamesh to the coming together of the Avengers.
As writers of licensed fiction, one of the most enjoyable aspects is to put together various combinations of characters that don't always get together. B...