The runaways(series book one)

Sarah and Molly had a hard life and decided to run away from their mom. Their dad died one month before they left. They're favorite place to go with their dad was the lake so they went to the lake that he took them to every year and found an abandoned cabin. In this story they will face many challenges but they will always stick together. Molly is a thirteen year old girl that has short black hair and loves animals, nature, and looks up to her older sister. Sarah is a sixteen year old girl that has long blonde hair and loves swimming, nature, and looks up to her dad.