Terror history

i was alone in the house of my grandparents and they live in a village and i had fear because i had  heared that  in the house scared,and was night  but i had all lights open and also the T.V but i didn't feel sure and i started to hear noise out of the house, and i had more fear than before, and i didnt know that do.
I started to cry, i heared noise in the patio and nails tear the behind door, and i desperate more than i was.
after my grandparents come back and i told all that happened me, and they started smile and sayd me that all noise that i was heared just was a dog that they have and i dont konw that they had a dog, but the fear that i was passed dont forget me never.