- Have all of the party members to talk to Ellin and select the first option: "Give me the Purification Stone". Each member will have 10 Purification Marble.
- Start collecting 20 Monster Marble by using the Purification Marble to capture (click on) Poisoned Spright.
- Pass the collected Monster Marble to the party leader and have him to talk to Ellin.
- Ellin will then attempt to purify the monster, and the NPC Sprite will appear. Talk to him and proceed on to the next stage.