Free Raschal from the Zukk'ash hive. Return to Ginro Hearthkindle in Feathermoon Stronghold and let him know that Raschal is alive and well.
The pod splits opens some when you touch it, revealing a night elven male who is surprisingly still alive. He seems to be in good health, though deeply stunned. As you help him down from the pod, he stirs to life.
"Thank Elune - you've saved me, friend! I... I'm Raschal, and I awoke paralyzed inside this pod after these bugs overwhelmed me. Were you sent by the Stronghold?"
It would seem that you've found the missing courier!