Eventually Fionn's ever spreading fame of his exploits threatens to bring his father's killers to him, but by this point his caretakers have taught him enough that he can survive on his own, and he goes into the king of Bantry's service.
Eventually Fionn's ever spreading fame threatens to bring his father's killers to him, and his caretakers send him to find his own way. By this point they have taught him enough that he can survive on his own, and he goes into the king of Bantry's service.