Welcome to 1879! This volume describes the British military in an alternate world, where an interdimensional portal has given the Empire access to a new land, the Gruv. All the details you'll need to field advanced steam technology, special forces units such as the Pioneers, a broad range of artillery, and military spellcasters are contained herein. Unleash the full might of the Empire against the weird science of the Samsut, and the primitive but effective weaponry of the Saurids!