But was it to good to be true? When they reached Watership down, what is now there beautiful home would be gone if they didnt have more bunnies. So the challenge of finding does brings them on many adventures in which one almost killed Fivers brother. Years later the warren is thriving and bringing in rabbits from different warrens. And soon Hazel grows old and weak and passes away happily, knowing that his warren will be safe and thrive forever.