Complex sentence: The final blow was rejection by the Tuhoe Tribe, "the People of the Mist" could have offered them sanctuary in the Urewera Ranges but they were at best only half hearted about it.
Split into simpler sentences: The final blow was rejection by the Tuhoe Tribe. "The People of the Mist" could have offered them sanctuary in the Urewera Ranges but they were at best only half-hearted about it.