Jeff faces one difficulty after another as he serves as a drummer boy in the Confederate Army, all while wrestling with personal issues of faith, and meeting Christians in unexpected ways. Meanwhile, Leah is receiving the unexpected attention from a young escaped Union prisoner.

The Soldier Boy's Discovery is the fourth of a ten book series, that tells the story of two close families find themselves on different sides of the Civil War after the fall of Fort Sumter in April 1861. Thirteen year old Leah becomes a helper in the Union army with her father, who hopes to distribute Bibles to the troops. Fourteen year old Jeff becomes a drummer boy in the Confederate Army and struggles with faith while experiencing personal hardship and tragedy. The series follows Leah, Jeff, family, and friends, as they experience hope and God's grace through four years of war.