Chapter 639: Chapter 307 Joy City

Just at that moment, a flurry of snowflakes arose near the tops of two mountains, a strange phenomenon that none had ever witnessed before. Following the snowflakes, a mist seemed to emerge.

Having seen much of the world, Maya exclaimed in alarm, "Avalanche."

In an instant, the rules flashed through her mind. The mass of the avalanche was definitely greater than the weight of a locomotive. In the first scenario, the train might be struck by the avalanche and could potentially be derailed. In the second scenario, the avalanche could block the train's path, and according to the rules, the obstructing snow would be refreshed after one minute. But there was a limitation to this rule, which was that the countdown for the refresh would only start after the avalanche had come to a stop. And an avalanche was a continuous process.