When Abraham Lincoln is only eleven years old, he learns from his father, Thomas that vampires are, in fact, real. Thomas explains to his son that a vampire killed Abraham's grandfather (also named Abraham Lincoln) in 1786. Young Abraham is also shocked to learn that his beloved mother,Nancy succumbed not to milk sickness but rather to being given a "fool's dose" of vampire blood, the result of Thomas's failure to repay a debt. Lincoln vows in his diary to kill as many vampires as he can. A year later he lures the vampire responsible for his mother's death to the family farm and manages to kill it with a homemade stake. In 1825, Lincoln gets word of a possible vampire attack along the Ohio River and investigates, but this time he is no match for the vampire and is nearly killed. He is saved at the last moment by the intervention of the vampire Henry Sturges. Henry nurses Lincoln back to health and explains some of the nature of vampirism, emphasizing that some vampires are good and others are evil. Lincoln spends the summer with Henry sharpening his senses. Henry sends Lincoln the names and addresses of evil vampires; Abraham dutifully tracks them down and kills them.
As a young adult, Lincoln and a friend travel down the Mississippi River to New Orleans on a flatboat to sell a number of goods. Here Lincoln's life is changed forever after he witnesses a slave auction. Lincoln follows a slave buyer and his new slaves back to their plantation and discovers to his horror that the buyer is a vampire - the slaves are to be used not for labor but for food. Lincoln writes in his journal his belief that vampires will continue to exist in America as long as they can easily buy their victims in this manner - to end slavery is to end the scourge of vampires. Lincoln becomes an