List price: $18.95 (that's 30% off!)
Used price: $10.05
Collectible price: $15.88
Buy one from zShops for: $12.51
The book is approximately 120 pages long. Of those 120 pages, only 12 deal the fight on East Cavalry Field. The rest of the book deals with a bunch of miscellaneous stuff that really has nothing to do with the themes suggested by the title. The little bit of information on the fight at East Cavalry Field sheds no light on the complicated battle that raged there. There's virtually no discussion of the extended and brutal dismounted fight that preceeded the two mounted charges and which necessitated them. There are only a couple of not particularly useful maps, and very little in the way of illustrations.
The title is also misleading in many ways. First, and foremost, George Custer played only a small and somewhat insignificant role in the battle. Brig. Gen. David M. Gregg commanded the Union forces there, and he's the one who made the critical decisions that impacted the outcome of the battle. Second, Gregg gave the orders for the 7th Michigan Cavalry, and later, the 1st Michigan Cavalry, to charge, usurping Custer's authority. In fact, Custer just went along for the ride, albeit a ride into glory. He had nothing to do with the decisions to charge.
Further, not even the most stalwart of cavalry buffs would be so arrogant to suggest that a sideshow to the Battle of Gettysburg somehow saved the Union. Perhaps the main fight at Gettysburg did, but this sideline action most assuredly did not. The repulse of the Pickett-Pettigrew-Trimble charge was much, much more significant to saving the Union than the Gregg-Stuart fight on East Cavalry Field.
Finally, and most troubling is the fact that this book's bibliography is only a page and a half long. It's clear that the author relied almost exclusively on secondary sources, as only three or four primary sources are cited in the bibliography. Stunningly, not one of those primary sources is the Offical Records of the Civil War, which must be starting point for anyone trying to analyze and understand a Civil War campaign or battle. There's no substance here to speak of, and certainly nothing to make it worth buying.
Do yourselves a favor...don't waste your money on buying this book. It's not worth it.