Trader Katerina:
You have not brought any fragments of elemental stone. As I already told you, you must go to the underground Elven Ruins to find the fragments of elemental stone. Inside the fire spirit salamanders and water spirit undines, you will be able to find the flame shard and ice shard, respectively, fragments of the elemental stones of fire and water.
Say you will bring the jewel
Say you will end the contract