"The Jewel of the Crown" is the nineteenth episode of the Sonic Underground television series. It first aired on 10 March 1999 in France and on 23 September 1999 in the United States. It was included in Volume 2 and The Queen Aleena Chronicles.
The song performed in this episode is "The Cosmic Dance."
Robotnik has his sights set upon Queen Aleena's crown jewel, which glows as it is moved closer to her. Sonic, Manic, and Sonia plan to recover the jewel from the merchant owner before Robotnik, not only to find their mother, but to protect her as well. The Hedgehogs acquire the jewel and begin their search, the glow becomes more radiant the closer they travel to their destination and their hopes of finding the Queen seem to be a tangible reality. The trio arrive to the place where the glow is at its brightest only to find that the jewel was only a decoy intended to lure Robotnik into a trap.
|Sonic Underground episode list|
|Episode 1-20||Wedding Bell Blues | To Catch a Queen | Mobodoon | The Price of Freedom | Underground Masquerade | Tangled Webs | The Deepest Fear | Who Do You Think You Are | The Last Resort | Come Out Wherever You Are | Winner Fakes All | A Hedgehog's Home is Her Castle | Artifact | Bug! | Sonic Tonic | Friend or Foe? | Head Games | When in Rome... | The Jewel of the Crown | Three Hedgehogs and a Baby|
|Episode 21-40||Dunes Day | Mummy Dearest | Hedgehog in the Iron Mask | Six is a Crowd | Flying Fortress | Beginnings | No Hedgehog is an Island | Getting to Know You | New Echidna in Town | Harmony or Something | Country Crisis | Haircraft in Space | Healer | Sonia's Choice | The Big Melt | Sleepers | Bartleby the Prisoner | The Art of Destruction | The Pendant | Virtual Danger|