A while back (i.e. before clearing my /entities cache!) I had bemoaned the lack of Zee-story sources, and was directed to hunt Lifebergs. IN the latest update, I can confirm that this both works for that purpose and is highly profitable; a recent trip took probably 40 min and netted 18 Lifebergs - hence 18 Zee-stories - and an additional profit of >2000 Echoes from their contents.[li]