At the full moon preceding the winter solstice, they would make the sacrifice.
If the sacrifice pleased the creatures that inhabited the forest then, he lived, and the villagers round about the great forest knew that the coming year would be fruitful. If the sacrifice displeased the forest dwellers, well the sacrifice was rarely seen again. If he was, it was usually only odd bloody bits of flesh left in the clearing, or occasionally they had found some unrecognisable wild eyed, insane, and mutilated remnant of the young man they had left there.
And when the sacrifice didn't please the forest dwellers, the villagers ate less of what they had put by for the winter and readied themselves to work harder in the spring and summer and to go hungry the following winter. And they prayed to the spirits of rain and sun to placate them, so that they might survive till the next harvest.
"Last year was satisfactory but not so good as it could have been, and that I can say for the last several years. We need a bumper harvest to build up our stores and to feed more cattle," the village chief, Yulga, said, and the other chiefs gathered in the holy place half a moon before the full moon before the winter solstice murmured their agreement.
"For three years now the sacrifice has pleased the forest dwellers. But not as well as he might have. All have lived," Yulga continued, and there were murmurs of--may it please the great spirit. "But the last two have returned to their villages broken men, and the crops for the last two years had been but adequate,"
"It is as you say, Yulga. So, holy man," chief Hangas of the largest village, Rottsnest, asked, "who do you suggest is to be taken into the forest this year?"
"This year we need a sacrifice of the highest standing and greatest manliness," the holy man, Argath, said quietly in his deep resonant voice. " Only the finest will satisfy the spirits now, for they are tiring of what we have sent them."
"So, which of the young men you have seen in your journey through the villages will go for us all?" Hangas asked.
And all the chiefs leaned forward, hungrily willing the holy man to choose one who would truly please the spirits.
"He must be a young, unwed man of eighteen years and fine proportions," the holy man said. "And of the clearest skin. With strong limbs and of a good height and a willing nature."
"Yes?" Yulga asked.
"I have travelled to all the villages, and I have found one I believe will please the spirits greatly. He has all those physical advantages that most please the forest dwellers."
"Yes. Yes, so tell us, so we may ready him for the ceremony," Hangas demanded excitedly. "If he is so perfect, why do you hesitate?"
"For many years I have made the selection, and I know that this year the sacrifice should be Naroc, the Fair." There was a gasp from the ring of chieftains. "He is tall handsome, and strong. He is what the forest dwellers seek," the holy man continued.
"Naroc? My son?" chief Yulga cried in shock.