Oil of Etherealness

 is a main quest in The Soul Keeper episode in the Sharandar Campaign. It becomes available upon completing the previous quest, Stalking the Stalkers.

Steps

 * Speak with Thradisar Starwise
 * Gather Firesky Sapling Pollen Gather Heliamphora Stamen Harvest Puclania Pulp  Collect Droseraceae Sap
 * Take Ingredients to Thradisar Starwise
 * Return to Pelendethas Everstride