Time Travel Time (The Adventures of Kien Aiyo Book 4)

Six years after The Hunt takes place, Kien finds himself haunted by what he thinks is the ghost of Vaaut. In his efforts to find the truth or at least a way to get rid of the ghost, he comes across the idea of time travel and makes a wish to go back in time to save his friend. His wish is granted, but he knows there will always be a price to pay.