Put to rest 5 tortured Coldain spirits in Forgotten Pools These mobs spawn as you progress through the zone.
You can duo this if you have skyshrine faction gear, but solo might be difficult esp the garden area with Styrax. In the room with the rumbler, you get caught in a prison, just tell your merc to attack the prison, bc you'll be stifled. You need not kill "Lord Bob" (end named) for this quest, but if you do, you'll get another primal velium shard if you finish the zone in time (20 min), plus a twink item for an alt or a mutable.
You must kill Styrax to complete this quest, beyond him are the last two tortured coldain you need. Be sure to kite him to red/blue sides as indicated by the flower's emotes (flower is red, take him to blue / flower blue, drag him to red). Do not kill flower first or he rages and instakills. Look for the tiny kybur in the room to get the key to the chest with another primal velium shard in it.