Custer at the Alamo

The blurb reads...

Sent 40 years into the past by a spell of Chief Sitting Bull, General George Custer and the Seventh Cavalry join Davy Crockett to fight at the Alamo against Mexican forces led by General Antonio Lopez de Santa Anna.

For $2.99 I figured I could take the chance. I'm glad I did. I thoroughly enjoyed it. Well researched. Good plot. Good characterizations. It compares favorably to Conroy, Flint, and Turtledove. I'd really like to see more.