Sébastien keeps putting off his promises to helpful classmate Adele to go play in the mountains with Belle. After he completely forgets about their joint assignment about minerals, she snaps the day may come Seb will regret not having her around anymore. A jealous school girl overhears them but spreads the false interpretation she's moving out of town, which swells mouth to mouth into a city boarding school. Seb feels it's his fault and decides to get her a fitting goodbye present from the mountain: rock crystal. Getting it proves perilous, but ends up reconciling and reassuring them.
—KGF Vissers