A Diamond for Ruby. Simone is getting all dressed up, she's getting ready for a date. It only needs one jewel to be perfect. That's good: Joris has found a big, beautiful diamond in Kerubim's belongings... They should have been wary of it because a huge Crackler emerges from the precious stone and threatens to destroy the entire shop! Fortunately, Kerubim appears with the magic formula to stop him! Phew! This diamond, Kerubim found it long ago in the Mountain of Cracklers when he competed with the most difficult of adversaries: his great rival of all time, Indie Delagrandaventure!