What does this dream mean???

MY SISTER IS BUYING A HOUSE. WE THINK ITS A NEW HOUSE BUT ITS AN OLD ONE. THE OLD LADY THAT OWNED IT LEAVES EVERYTHING THERE AND I JUST KNOW SHE LEFT SOMETHING GOOD. I’M LOOKING THROW EVERYTHING AND FIND SOME COOKIES. I GRAB ONE OF EACH PACK FOR THE VACATION RIDE WE ARE ABOUT TO TAKE AND SAVE THE REST FOR LATER. THEN IM LOOKING THRU A JEWELY BOX AND THERE ARE RING BUT I KEPT GOING THROW THE DRAWS KNOWING THERE IS SOMETHING MORE. THEN WE ARE OUTSIDE TALKING TO MY MOM. I NOTICE THERE IS NO DOOR. WE SAY WE HAVE TO BOARD IT UP BEFORE VACATION. THEN RIGHT NEXT TO THE HOUSE THERE IS AN OLD MAN DEAD. I THINK WE ACCID. KILLED HIM AND WE HAVE SHOVELS SEARCHING FOR DIRT TO BURY HIM. THEN, SOMEONE AND ME ARE IN A FLOODED ATTIC OR UNDERGROUND AND THERE IS A SNAKE IN THE WATER LAYING THERE. HE IS WHITE. I HAVE A FEELING HE IS ALWAYS THERE AND IM A LITTLE APPREHENSIVE BUT NOT AFRAID. WE ARE LOOKING FOR SOMETHING. ONE OF US IS GOING UP THE STAIR AND THE SNAKE JUMPS OUT OF NO WHERE AND BITS THERE NECK