the ultimate revenge

Alexander's sister is brutally murdered by a serial killer thats a vampire. Alexander trys in all his power to stop the killer then he asked Alexander that he wants for his last wish and he answers by saying he wants power to stop him then he gives Alexander the curse of being a vampire in exchange for his humanity and go's after revenge for killing his sister
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this is my first ever book I've wrote soo plz tell me if I'm doing something wrong and give me some tips I'm only 16 and turning 17 (13 July)
tips can be sent to ult.revenge69@gmail.com
thx for reading or thx for going to read.
lot of love to my fans. 1 chapter per week or ask for more
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