C290 The Appearance of the Spiritual Treasure

Confronted with Nettie's challenge, Robert simply smirked and made his way toward the cave with confident strides. Agnes, witnessing this, couldn't help but cry out in alarm:

"Master, be careful!"

She had been quite close to her sister in their younger years and knew her personality well. If Nettie had warned about the defensive magic formation, it must be incredibly formidable