Garnet Star

The sixth Crystal Star found at Detective Pennington's home, the Poshley Sanctum. This was hidden in the painting at the Sanctum while a red herring, a fake one, was put out in the open to fool the Shadow Sirens, King Bowser and Kammy Koopa (only Bowser and Kammy weren't fooled-- Pennington told them the Crystal Star they grabbed was a red herring). This Crystal Star will teach you the move "Showstoppers".