i didnt get the quest for 3 missing lizardes, i only had one quest at priestess - i think it was green essences?
1. Do the more potion quest for Shopkeeper to learn how to make restrain potion (You can also just check the recipe guide if you prefer).
2. When you know how to make restrain potion there is a first quest for Priestess about bringing her some of the restrain potions.
3. After finishing restrain potion quest for priestess, lost acolyte quest is unlocked.