Lyra, Raven, and the city mages charged into the chamber, determined to rescue Kaelara and Lirien. Nyx sneered at them, her eyes flashing with dark magic.
"You're too late," she spat. "My spell is almost complete. Soon, I'll be invincible."
The city mages launched a barrage of spells at Nyx, but she deflected them with ease. Lyra and Raven fought hand-to-hand, trying to get past her defenses.
Kaelara and Lirien struggled against their bonds, but they were no match for Nyx's magic. Lyra knew they had to act fast.
Using her own magic, Lyra tried to break the bonds that held Kaelara and Lirien captive. But Nyx was too powerful, and the spells only seemed to make the ropes tighter.
Raven grabbed Lyra's arm, pulling her back. "We need a new plan," he shouted above the din of battle.
The city mages regrouped, discussing their next move. One of them had an idea. "We can use the ancient magic of the city to our advantage," he said. "We can tap into Elara's power and amplify our spells."
Lyra's eyes lit up. "That's it! Let's do it!"
With renewed determination, the group launched a second attack on Nyx. This time, they were armed with the combined power of the city's ancient magic.
The battle raged on for what felt like hours, with spells flying back and forth across the chamber. But slowly but surely, Lyra and her friends began to gain ground.
Nyx stumbled back, her powers waning as they chipped away at her defenses. Kaelara and Lirien broke free from their bonds, joining the fight with fierce determination.
In the end, it was Lyra who delivered the final blow, striking Nyx with a blast of pure energy that sent her crashing to the ground.