Among these temporary passages, the shortest lasted for only several tens of minutes, while the longest lasted for little more than a month.
Furthermore, the closing of these temporary passages was highly unpredictable. It was perfectly normal for them to close several days ahead of their estimated expiration.
This trait was a death sentence for explorers. Imagine completing a circuit of exploration and plunder, your Storage Ring filled to the brim, only to return and find the passage gone!
What a cruel joke.
In any case, whenever something like this happened, the exploration team was essentially wiped out.
The Volcano Grotto Heaven was a vast and perilous domain. Even a Golden Core cultivator wouldn't be certain of successfully crossing its immense expanse to find another exit.
Only a Nascent Soul True Monarch had the power to create an internal blast, forcibly shattering a weak point in the world membrane to return to the main world.
