The novel “Divergence” by Charles Sheffield was published for the first time in 1991. It’s the second book of the Heritage universe and is the sequel to “Summertide”.

E.C. Tally is an artificial intelligence but his mission requires a physical body. For this reason, an organic human body is grown for him and his brain is implanted in it. This way, he can interact with human beings on the planet Quake, in the Dobelle system, where he’s sent to see what happened after the Summertide because no news came from it anymore.

During the Summertide, the planet Quake has literally opened and out and an artificial object came out of it. It went towards the planet Gargantua, where the group of humans and aliens came to investigate the Summertime follows it. The hope is to discover the secrets of the Builders but their structures can still hide dangers after millions of years.