Bonnie produces a spell that sends Caroline into the past; learning more about Klaus and uncovering secrets she never expected, Caroline begins to realize that nothing is merely coincidence. Credits: ohriverdale https://m.fanfiction.net/s/8000718/1/Bound-To-You

Klaus shifts one night that was beyond his control (shocking) because he normally has tremendous control and can shift at will, his wolf drags his vampire and human side along and ends up at Carolineś house and doesnt attack