Decision at Thunder Rift is a novel by William H. Keith Jr. published in 1986.
Decision at Thunder Rift is the first BattleTech novel. [1]
Shannon Appelcine stated that by 1986, FASA "began creating a metaplot for Battletech. At first this was just reflected in yearly updates: the Battletech Technical Readout: 3025 (1986) was soon replaced by the Battletech Technical Readout: 3026 (1987). However, FASA had simultaneously begun publishing fiction—starting with William H. Keith Jr.'s Decision at Thunder Rift (1986). [2]: 70