Sonic is on the hunt for the seven Gaia Temples. Only their mysterious power can restore his world after its destruction at the hands of Dr. Eggman! His quest takes him to places he"s never been before--such as the bottom of the ocean! Join Sonic, Amy and Rotor as they encounter a whole new undersea world full of new friends, foes, and monsters from the deep! Plus, take a special look at the secret origins of the NEW SONIC COMIC UNIVERSE! Collected for the first time in graphic novel form!