Forgotten Hill Memento: Run Run Little Horse

Short stories are back in the Forgotten Hill series. These stories tell the tales of memories and secrets from Forgotten Hill residents. They are divided into two mementos. Run Run Little Horse is the first story, set in April 1888. It's about a boy with a loyal horse. He will find his father's list of items. You can help him solve the puzzle to get the items. Which truth will he discover?