Puppy MacClarity spent most of the last school year wishing his teacher, Miss Pritchett, would get hit by a cement truck or be rendered speechless by an incurable disease. He never imagined that by the end of the summer hed save her life, on purpose.
Rumors have surrounded the MacClarity summer house since the Ernest MacClarity bought it in 1910. Uninvited strangers come to sticky ends and kids tend to have accidents if they leave the property when they shouldnt. At first, Puppy doesnt realize somethings different at his haven. All the right ingredients are there: his friends, his family, freedom and food, but the security Puppy expects to find doesnt materialize. A llama spits on him so much, he cant get the stink off. Then she starts stalking him and chasing him over the property line. A stranger comes onto Ernests land and survives, and Puppy discovers Miss Pritchett living a mile away. Its too good an opportunity for the kids to pass up. She doesnt know theyre her neighbors, so she can be tormented anonymously. Puppys all for driving Miss Pritchett crazy until he sees shes in trouble. No one but Puppy seems to notice or care that the nasty Miss Pritchett has problems too or that theyre making them worse. Yet the two of them are on a set course and Puppy cant change it. Soon he finds that, like Miss Pritchett, evil is just a short walk away and it likes to travel.
good first paragraph, great last line in the second paragraph. Everything in between is blather.
All the house story is back story. Focus on Puppy and Miss Pritchett and their conflict. If that isn't what the story is about, figure out what it is about and focus on that.