9 days later, Castle of Black Iron, Immortal Mountain, Sky Waterfall...
The silver dragon-like waterfall from the hillside of the main peak of the Immortal Mountain formed the most splendid scenery in Castle of Black Iron.
Zhang Tie named this waterfall as Sky Waterfall.
The water of the Sky Waterfall originated from the thawed snow. After flushing off the waterfall, the snow water converged into rivers and lakes. The moisture then evaporated and condensed into snow on the top of the Immortal Mountain. The snow froze and condensed into the ethereal cloud; after that, it thawed and flushed off the waterfall once again...
Castle of Black Iron had already formed a macrocyclic ecosphere.
The Sky Waterfall was surrounded by verdant woods, splendid scenery and fresh air. It became Zhang Tie's favorite cultivation site.
In the past 9 days, Zhang Tie sat down there for recovery every day.
