Rundelhaus hid from his friends that he was one of the land people, but the price of fighting off the dire wolves was that he took a fatal wound.  If they can't save him, he'll die and he won't revive.
3. Log Horizon will provide Rundel Haus Code
Drittens: Log Horizon wird Rundelhaus Kode
so viel Unterstützung gewähren,
Log Horizon le proveerá todo el apoyo
 necesario para sus misiones,
Article 3.
3. La gilda Log Horizon
2. Log Horizon proverá a ele