Harry Castlemon 
Frank Before Vicksburg [PDF ebook] 
The Gun-Boat Series

Younger readers will love this thrilling first-hand look at one of the crucial battles of the American Civil War, the Siege at Vicksburg, during which more than 30, 000 soldiers were injured, killed or captured. After a period of rest and recuperation back home, Frank Nelson, the star of Castlemon’s beloved Gunboat Series, is called back into service. Will he be able to survive this legendarily bloody battle?