He reached the high stone wall of the gardens and was hoisting himself over the red and stone walltop when a dark-faced Senn caught sight of his Earther uniform and screeched the alarm. The McCanahan cursed in his throat and dropped to the ground inside the garden, his jet boots printing their soles deep in the soft loam of a bed of Thallan sunflowers.
He made for the arched doorway at the near end of the gardens. At a run he came into the darkness of the groined arches. He knew his way through these labyrinthine tunnels. With his father, he liked to walk in the cool corridors where the manacled takkaprots screeched their birdlike songs and the colored waters of the fountains made a rainbow of moving brilliance.
The hoarse, brazen pitch of the bry-horns were startling in the Senorech morning. _They'll be roaming these halls with their blasters cutting at every shadow_, he thought. _Sooner or later one of the shadows they shoot at will be mine!_ He had to reach his father's suite, had to kneel there and do what must be done for Patric McCanahan, as Patric had done to his own father before him.
They might expect him to come as he was, expect him to fight his way to his father's side and kneel to whisper a prayer for him over his dead body. On Earth it would be expected. Expected and guarded against. But Senorech was not Earth, and on Senorech things were rarely done for emotional reasons. The McCanahan yanked his Thorn from its sheath as he slid into a telepetor and twirled a dial. If they were expecting him he was ready.
Curiously, the suite of rooms was empty, save for the crumpled man who lay in a white uniform with gold and platinum aigrettes on the shoulders, and red tykkan braid looped under a crumpled arm. McCanahan went to his knees, and his lips moved. In the custom of spacemen everywhere, from the domed tunnels of the Moon to the hellcraters of humid Brinth, he put his hand to his father's wrist and whispered, "I swear by the blood that bonds us, you will not have died in vain. I will make the report, and investigate the reason for your dying."
It was a simple thing, that oath. Many men had spoken it, until it had become a part of the creed of those who roamed the star world. It prevented tragedies, and saved lives, for once the reason for a man's death was known, preventive precautions were taken, so that many men who otherwise would have died, lived to walk the palm terraces of Mars and sail the tossing seas of Achernar. The histories of space featured and explained it, and glamorized its usefulness.