Sentinel

A master computer is built on an asteroid to support a telescope complex. Over time, it grows as memory and components are added. One day it wakes up. It develops a friendship with a man. It acquires a name - Mulligan. With the man, but with no one else, it answers to 'Mulligan'. Then aliens come to the solar system, there is a war, and Mulligan learns much about awareness, friendship, courage, and mortality. AVAILABLE AT APPLE, BARNES & NOBLE, AND WALMART.