When Wordsworth Doyle and Jessica Redd explore the old abandoned Chamberlain mansion, they don't expect to find someone still living there. But there is - a ghost! Sebastian, the ghost of a nine-year-old boy, is bound to the mansion by a magic spell and he desperately needs their help. But Sebastian isn't the only one with a serious problem. Jess' friend, Angelina, a young emigrant from Nicaragua, is worried about her father who is being held in his country for his outspoken views on the government. There is one key which will solve everyone's problems, but Wordsy and Jess will have to face something very dangerous if they want to find it.