The Phantom of Goliad

Who is the Phantom of Goliad? No one has seen him until a fifth grade student named Hector Zamarippa and his family are visited one night by the Phantom. The masked man came to help Hector's dad buy a new truck after his was totaled in a bad wreck. But he was wearing black clothes and a black mask like Zorro; and he was riding a black horse. Who is this masked man doing good in the community? No one knows, but Hector and his friend will are going to find out...