19:25 Sheldon: I can give you an elemental stone according to your progress, in other words, if you have registered the catch of one ofthese Pokemons: Kangaskhan, Scyther, Magmar, Electabuzz, Lapras, Jynx, Dragonair and Tangela.
19:26 Sheldon: Which of these pokemons have you caught? Kangaskhan, Scyther, Magmar, Electabuzz, Lapras, Jynx, Dragonair, Tangela, Muk,Snorlax, pidgeot, Machamp, Golem, Sandslash or all?
19:26 Wiechu: sandslash
19:26 Sheldon: So you caught sandslash?
19:26 Wiechu: yes
19:26 Sheldon: Well done, take your reward.
19:26 You see an Earth Stone.
A peculiar stone that makes certain species of Pokemon evolve.