David Brin enjoyed a pretty strong breakout in the early 80s. It's been said that his "Uplift Trilogy" conferred the fan-term "uplift" on a standard SF-trope: that of superior aliens using genetic manipulation and breeding techniques to transform non-sapient beings into fully sapient entities. The second book in the series, STARTIDE RISING, won both the Hugo and Nebula Awards. The third. THE UPLIFT WAR, failed to win a Nebula but won awards from Hugo and Locus.
But the first book in the series, which was also Brin's first published novel? Well--
I must note that the Uplift Trilogy is a discontinuous series, sharing a common universe but no continuing characters, so far as I know. SUNDIVER is implicitly centuries in Earth's future, when humans have made contact with assorted aliens ("Eatees"), some of whom are "patron races" have uplifted "client races" into sapience. Earthpeople are something of a scandal to other Eatees, because humans evolved to sapience without a patron. However, Earth-tech did at some point advance to the point that humans could "uplift" semi-intelligent animals, mainly chimps and dolphins, to co-equal stature. SUNDIVER's main character is a scientist involved with uplift procedures, though we don't see him doing his specialty.
Instead, Jacob Denwa, because of his relationship with some of the friendly Eatees. gets invited to join a crew of humans and Eatees on a ship, the Sundiver. This vessel journeys to the periphery of Sol itself, to study what seem to be sentient "Sun Ghosts" dwelling in the midst of the solar orb. Sounds like a "blazing" good time, right?
Sadly, SUNDIVER is not an enthralling investigation of a new form of life, but rather, what might best be called a "locked ship mystery." In this situation, a group of passengers on a vessel are confined in each other's company, only to find that there are one or more parties aboard who have insidious or ulterior motives. In fact, the novel even has a wrap-up chapter in which one of the "detectives" sums up, in the best Scooby Doo manner, how the culprit attempted to perpetrate "the hoax of the anthropomorphic Ghosts."
Since I mildly enjoyed Brin's later novel THE POSTMAN and plan to read the second UPLIFT book, I think SUNDIVER was mostly just an excuse for Brin to set up his conceptual universe, not to tell a compelling story. The characters are two-dimensional and not all that consistent, and Brin injects some modern political content that dates the novel somewhat. Early in the novel, Denwa describes in glowing terms how Eatees on Earth have turned some humans out of their own cities, which is not universally a good thing in the 2020s. There's a political debate about whether or not Earthpeople might've been covertly uplifted by some unknown patron, but this has no resolution and is merely an excuse to motivate a couple of those parties with ulterior motives.
SUNDIVER offered a quick and easy introduction to the Uplift universe, but it's pretty thin stuff overall.


