The Sandollar Necklace

We had been at the farm for 2 weeks. My summer holidays had already been planned out. Two weeks at the farm, and 6 with my cousins at the beach house. The beach house was a small cottage on a secluded beach that my family owned. Sounds fantastic right? Wrong. My cousins were, single handedly the WORST family members anyone could ever have. There were eight of the evil children, Sammy, Hannah Denise [or Hannah D. as everyone called her], Mary-Ann and Ann-Marie, Hugh, Michael, Fiona, and Kelly. Sammy picked his nose and ate it, Heather bossed everyone [and not in a good way], the twins were downright annoying, Hugh was a half-wit, Michael was enormous and ate alllllll the snacks if we had any, Kelly was the typical cheer leader brat, and Fiona was normal, so she got depressed and cried because of her siblings. It was not cool.
The 2 weeks at the farm had been heaven. It was quiet, away from civilization, and perfect for a holiday. My sisters and I had found an old willow tree by a stream, and had spent most of the 2 weeks escaping the intense heat under the shade of the old willow or in the cool stream water. About the 3rd day at the farm, we found a note tucked into the peeling bark of the tree. It took us a while to realize what it said, 'in the river bed there lies a box, don't touch it, or look for it. What lies inside is cursed. Try your luck if you may, but don't get it..' the rest was torn off.
"Who the hell wrote that?"My sister georgia asked. Georgia is tanned and dark-haired, like me, people say that we look alike, me being short, her being normal, we could be twins.
"What do you think it said?" My younger sister Isabelle asked. She unlike me and Georgia had light skin and blonde hair that she had cut in a bob. Her blue eyes gleamed with curiosity.
"Whoever it is, they sure did a great job telling us what to do about it." I turned away, knowing that they would never know, that I did, and I was going to do something about it.
That night, I snuck out to the tree dove in the shallow stream, and dug. It didn't take long before I touched something smooth and hard, but definetly not rock. I pulled out of the stream a giant long box, with 'E. Howard' carved into the lid. I unbuckled the leather strap that had almost disintegrated from the stream, inside, was a sandollar necklace.