In 850, Rebecca met newly Immortal Amanda who she taught about Immortality, The Game, how to fight, and they become good friends. Amanda, however, could not let go of her thieving ways and, and one day, tried to steal the crystal Methuselah's Stone in Rebecca's care. She was caught, but Rebecca forgave her. Amanda was moved by this and started to learn how to become a proper lady and to have a proper life. Amanda eventually left Rebecca's abbey, a refuge for Immortals, in 853. Rebecca gave one part of her crystal as a parting gift, as she had done with other pupils.
That same year, while traveling, Amanda met Immortal Hengist who challenged her to fight. Fearing for her life, she ran back to Rebecca's abbey and the safety of holy ground. Rebecca told her that she cannot run forever and must face her demons. Amanda gathered her courage and faced the Immortal. She won through and received her first Quickening. After the experience, she left the abbey again, ready to face her future.
in 1635, when Amanda was visiting Rebecca in Italy, they sensed the presence of an Immortal close by. The Immortal was Duncan MacLeod. Whilst they discussed who should fight him, Amanda decided that he was better kissed than killed and, after kissing him, she and Rebecca left him, taken aback and without his purse, which Amanda stole. But they soon found that a Scotsman and his money are not so easily parted, they hadn't gone far before they turned a corner and found MacLeod waiting for them. After recovering his purse, he took his new lady friends for a drink.
Some years later, Rebecca would meet Luther who became her student and whom she taught the rules of the game. They later became enemies. (Luther was obessed with finding the legendary Methuselah Stone which was supposed to grant immortality on any Immortal who had possession of the ressembled crystals; Rebecca had given one shard to each of her Immortal pupils)
One day while walking near the ruins of her abbey with her mortal husband, John Bowers, she spoke to him of her feelings, how she felt about him. Luther arrived on the scene, much to the shock of Rebecca who remarked that she had hoped someone had taken his head. He replied that many tried but all had failed.
Rebecca was ready to fight him, but Luther grabbed John and threatened to kill him. Rebecca pleaded for John's life in return for her head. Luther agreed, and assured her that he would keep his word. Luther knocked John out, and took Rebecca's head without a fight.