Complex sentence: Spooner recognizes the landscape in Sonny's drawing as Lake Michigan, now dried-up and used as a storage area for defunct robots, where he discovers NS-5 robots dismantling older models and preparing for a takeover of U.S. cities.
Split into simpler sentences: Spooner recognizes the landscape in Sonny's drawing as Lake Michigan, now dried-up and used as a storage area for defunct robots. Upon arriving there, he discovers NS-5 robots dismantling older models and preparing for a takeover of U.S. cities.