Chapter 655: What's Going On?

The ground instantly exploded apart, rubble and dust flying everywhere. Li An and Guo Yao hastily retreated, barely dodging the strike.

"What's going on?" Guo Yao asked in surprise.

Li An furrowed his brow tightly, his gaze sharp as a torch as he surveyed the surroundings: "It seems we've triggered some hidden power within the Sky City. This power is preventing us from approaching the Ancient Key."

Hearing this, Guo Yao couldn't help feeling a bit worried: "Then what should we do?"

Li An took a deep breath, a gleam of resolve flashing in his eyes: "No matter how many difficulties lie ahead, we533 cannot give up. Guo Yao, stay close to me, we'll definitely find a way to break through all of this."

Guo Yao nodded, a gleam of trust shining in her eyes. She gripped Li An's hand tightly, as if wanting to pass all her strength to him.

Li An once again pulled Guo Yao's hand and charged forward. They were like two brave warriors, forging ahead through the dangerous streams of energy. Those streams of energy, as if sensing their resolve, grew even more violent.

Li An and Guo Yao tumbled and leaped through the air, dodging attack after attack. Their figures traced graceful arcs in the air, as if performing a breathtaking dance.

"Li An, look out!" Guo Yao suddenly shouted.

Li An hastily dodged to the side, only to see a beam of energy graze past him and strike the wall behind him. The wall instantly exploded apart, rubble and dust flying everywhere.

Li An's heart jolted, and he hastily turned to look. He saw Guo Yao staring intently ahead, her eyes filled with vigilance and worry. Li An knew she was warning him to watch for danger ahead.

He cast her a grateful glance, then charged forward once more. They passed through beam after beam of energy, dodging attack after attack.

Just then, Li An suddenly saw a ray of light appear ahead. That light shone especially dazzling in the darkness, like a lighthouse guiding them forward.

"Guo Yao, look!" Li An pointed ahead and said.

Guo Yao followed the direction of Li An's finger, a flash of delight crossing her eyes: "Is that... the Ancient Key?"

Li An nodded: "That's right, it must be. Let's hurry over."

They quickened their pace, charging toward that ray of light. However, just then, a sudden alarm blared through the Sky City. The alarm was shrill and piercing, as if about to pierce their eardrums.

Li An and Guo Yao stopped simultaneously, watching their surroundings warily. They saw a powerful defensive force rise up ahead, like an indestructible wall blocking their path.

That defensive force radiated dazzling light, as if woven from countless energy beams. Li An and Guo Yao stood before the defensive force, feeling immense pressure.

"What's going on?" Guo Yao asked in surprise.

Li An furrowed his brow tightly, his gaze sharp as a torch as he observed the defensive force: "It seems this is the Sky City's final obstacle. We must break through it to obtain the Ancient Key."

Hearing this, Guo Yao couldn't help feeling a bit worried: "But this defensive force looks so powerful. Can we break it?"

Li An took a deep breath, a gleam of resolve flashing in his eyes: "No matter how powerful it is, we cannot give up. Guo Yao, stay behind me, we'll attack it together."