his trick, and reveals it, resulting in disgrace to Bubbacub and embarrassment for the Pila. The characters go on yet another mission into the sun, this time with a laser to communicate with the sun-ghosts. They make brief contact with one of the ghosts, but an anthropomorphic ghost appears and warns them against further exploration of the sun. While they are leaving, they discover that one of Culla's dietary supplements is a dye used in tunable lasers. Combining this with an earlier conversation about Culla's eyesight, Demwa concludes that Culla can project laser light from his eyes: he has been faking the anthropomorphic ghosts. When Culla realizes he has been discovered he retreats to the instrument side of the ship and begins disabling the equipment that propels the sunship so that it will fall into the photosphere, taking all evidence of his deception with it. The sun-ghosts use toroids to arrest the ship's fall, but eventually they give out, and the ship plummets. While Demwa and one of the crew attempt to disable Culla, Helene discovers that only the galactic technology has been sabotaged, and uses the refrigerator laser as a thruster to move the ship out of the sun. Culla is killed, and the ship eventually escapes the sun, though all but Fagin temporarily "die" of hypothermia and frostbite from the refrigerator laser. The ship's records are recovered, showing that Culla used his laser sight to discredit Bubbacub, as part of a campaign to free his species from its client status, and then to sabotage the ship when he was discovered to prevent the Pila from finding out. Although set in the same universe as the rest of the other Uplift books, it is set a considerable amount of time before the other books, and shares none of the same characters, apart from Jacob Demwa, who is mentioned as the mentor of Tom Orley and Gillian Baskin, and Helene Alvarez (née deSilva), who is mentioned in Startide Rising as Credeiki's former captain aboard the James Cook and who appears in The Uplift War to sign a treaty with the Thennanin. Continuity The technique used to escape the sun alive when the Galactics' technology is sabotaged, using a refrigeration laser to dump the solar heat from the ship, is used again in Heaven's Reach. Reception Greg Costikyan reviewed Sundiver in Ares Magazine #3 and commented that "Sundiver is thought-provoking, tightly-plotted,