"I have given the elemental essences the Elemental Growth Potion.""I must give the elemental essences the Elemental Growth Potion. The elemental essences can be found inside the Tower of Serilis in The Hole.""I returned the Elemental Growth Potion to Artyom.""I must return the Elemental Growth Potion to Artyom. Artyom dwells within the Tower of Serilis in The Hole."