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.
And even if it does work...
Selbst wenn der Plan Früchte trägt …
Y aunque funcione...
Et en plus, même si ça marche…
E anche se funzionasse...
E mesmo que funcione...