 How would you describe Captain Llud's character transformation across the entire Quest III journey?
In the last hours the star ahead had grown brighter by many magnitudes, and had changed its color from a dazzling blue through white to the normal yellow, of a GO sun. That was the Doppler effect as the star's radial velocity changed relative to the Quest III , as for forty hours the ship had decelerated. For the Quest III was coming home; the sun ahead was the Sun, whose rays had warmed their lives' beginning. Eyes lifted from the vision screens to interrogate Knof Llud; he met them with an impassive countenance, and announced quietly, "We've sighted Earth." He had already set up on the calculator a course that would carry them to Earth. As the Quest III's fuel stores and the hope of success in man's mightiest venture had dwindled, so the strength had gone out of him. Weeks and months had passed for the Quest III in interstellar flight while years and decades had raced by on the home world. "One light-day out from Procyon, the thirty-third day by ship's time since leaving Earth. "We face the unpleasant realization that what was feared is probably true—that worlds such as the Sun's are a rare accident, and that we may complete our search without finding even one new Earth. This may be man's last chance of escaping his pitiful limitation to one world in all the Universe. Certainly the building of this ship and its two sisters, the immense expenditure of time and labor and energy stores that went into them, left Earth's economy drained and exhausted. Only once in a long age does mankind rise to such a selfless and transcendent effort—the effort of Egypt that built the pyramids, or the war efforts of the nations in the last great conflicts of the twentieth century. "According to plan, the Quest III has reached its furthest point from Earth. Now we turn back along a curve that will take us past many more stars and stellar systems—but hope is small that any of those will prove a home for man, as have none of the thousands of stars examined already. "Even so—by expending its remaining fuel freely, the Quest III could achieve a velocity that would take us there without dying of senility of aging too greatly. It would be a one-way journey—even if enough fuel remained, there would be little point in returning to Earth after more than forty thousand years. "That was why the planners limited our voyage, and those of the other Quests , to less than a thousand years Earth time.
 He was excited at first and became jaded over time.
 He was excited at first and became jaded over time.  He was consistently excited throughout because they found a new habitable planet early on in their mission.  His only priority was taking care of his family, so the mission's success/failure didn't really impact him much.  He was never really excited about his job, but he became excited at the thought of returning home.