It looks like Eoin Madden's busiest term ever! He's Castlerock College’s star player and he's been called up for Ireland in the Under 16 Four Nations - how will he juggle sport and school work?But his biggest challenge of all goes way beyond his own concerns and right to the heart of Irish rugby. When his oldest and best ghostly friend calls for help, can Eoin and his band of heroes solve their deadliest mystery yet?Take a dive into history –with some help from rugby legends of the past!