Arthur returned to John's side and then took out everything he had gathered so far. "First I need to build a cauldron," he held each ore with both hands, closed his eyes and started to circulate his spiritual energy fast inside his body.
The trick to make a good cauldron wasn't to just add pieces of ores together, but to make sure each piece would be bathed with the same type of energy like what he was doing now.
And that process didn't take more than ten minutes before he roughly refined all the pieces he got. "At least this would make it a basic cauldron, suited for this life saving task."
He turned towards one of the barks he collected. This one was different from others in that it wasn't a real bark of a tree, but a residual material gathered over time around a real bark.
"I hope it can work as a glue," he held it before touching the tip with his fiery ore. The next thing that happened was for the fire to catch it and start to melt it like a candle.