MAP OF MAYHEM
Topaz radios for help as the ship he is on, the Seahawk, runs into heavy fog. Back at base, the radio goes dead and the news follows that that the Seahawk has disappeared. Dr Eggman is suspected, and when news gets out that he has stolen an ancient map, our heroes put the pieces together and race to the rescue at the centre of the Earth!

THE VOLCANIC VENTURE
On an Island at the centre of the Earth, Sonic and the gang board the X Tornado and pursue Eggman into an unstable Volcano. There they find the mysterious gem “Harahirekonâ€