Rising like monster on Bali’s horizon, when Mount Agung erupts again it could destroy the valley below.
On the island they are hoping for a miracle but preparing for a disaster.
At the main disaster control centre, the army and volunteers gather supplies for those who have already been forced from their homes.
Boxes filled with food, cookers and protective equipment are stacked around the edge of a huge hall, while volcano survival kits containing goggles and masks to protect from the ash are packed for people living in the danger zone.
The evacuation’s being planned with military precision.
Some 40,000 families are already being supported but a bigger eruption could happen at any moment which could mean hundreds of thousands more need help.
In 1963, around 1,600 people were killed when Agung erupted.
Deputy Bernardus Wishnu Widjaja from the National Disaster Management Authority said they have to be ready to act immediately.
He told Sky News that the community could need help for “years, maybe”.
He said: “Our experience in 1963, almost 11 months.
“The last time…I was here 44 days.”
But molten lava isn’t the only risk, we watch as deadly volcanic mud hammers along the river beds, filling the air with the smell of sulphur.
Anything in its path will be destroyed.
Faced with these dangers, Ni Nengah Joniarta wants more than human protection.
She believes only divine intervention is a match for the force of the volcano so she presents gifts to the gods.
“I make this offering to ask for my family and people in Bali to be kept safe,” she said.
For now, islanders have an anxious wait.
It’s believed another eruption is coming but level of devastation it will bring is unknown.