|Panther SF paperback, 1977. Cover illustration by David Bergen.|
"When an atomic explosion destroys a huge expedition ship, Tansis becomes the sole survivor of the human race. A skilled space pilot, he manages to land his scout craft on the nearest planet. The alien world in which he finds himself is not hostile but has no means of supporting human life. Desperate for human contact, Tansis establishes a telepathic relationship with the extraordinary seal-like creatures who live in the planet's oceans. But just as things seem to be going smoothly, the craft computer warns Tansis that he energy supply is running out and he is forced to take drastic measures to safeguard his own survival..."