Molten. The energy source of the future. Or so scientists thought—until the sentient liquid metal began fighting back. Dolan and his Molten lover, Zian, are on a mission—collect the bits of Molten that have been blown all over the galaxy. They find more than they bargained for. With the help of a pair of sentient trees, Dolan and Zian must find a way to rescue the dwarf planet Harmony, which is made almost entirely from Molten, and tow it home. But Molten isn't the only thing they find. Can they rescue the younglings and return them to the Molten home world without blowing up this universe—or their relationship?