The black liquid caught on fire, the flame being low and red-orange as expected...
...before the bowl erupted in a pillar of white, searing-hot fire! The flame was so hot that Lugus and others had not choice to step away from the immediate vicinity of the shrine, lest they be scorched.
The pillar of fire then slowly took form of a man of flame, from waist up, with clearly defined head and arms and torso. 'It' stared at the Walkers, before turning its attention to the bodies of Fomorians which already began to catch fire from the blue motes of fire.
Then the fiery man lunged at the bodies, engulfing them with his own fire, and the smell of burned meat could be smelled for a while. Then the humanoid moved away from the corpses, or rather what was left of them - two piles of ash and just a bunch of blackened bits of bones amongst the remains.
"Shrine restored..." 'It' spoke clearly, for once. 'I am now free to return... You... were the first...' Suddenly, Geraldine was smacked on her face with the blue flame! But instead of being greviously scorched, the flame was merely warm, and once it was gone, all could see that Geraldine had a small black rune on her left cheek, of unknown design and language.
The spirit of fire then extended his fiery fingers to the foreheads of all Walkers, and they had sudden better understanding of the universe as such. Then, just as suddenly as the shrine exploded into the flames, the blue flame receded all the way to the bowl and then dissipated. The wooden bowl was still intact, albeit the black liquid was gone.
All Walkers receive +1 Skill point from this experience.
You can spend your Skill Points while resting for the night, or while traveling great distances at the sea.