C493 Ancient Forbidden

"How far is the space tunnel from here?" Feng Youran asked calmly.

"Master Feng, the space tunnel is right in front of us, but it's invisible to the naked eye," Lu Chenguang replied, pulling out a foot-long jade bottle from his belongings.

Lu Chenguang opened the bottle and flicked it behind him, releasing a shower of shimmering green powder. As the powder spread through the air, a dark