"I read in the Alchemy Society that there are only a few 'keys' to the alchemy magic array. They could be imprints of spiritual power with a fixed frequency, special crystal runes, or bloodline."
Bloodline!
This word made Fang Heng and Tang Mingyue's hearts skip a beat at the same time.
When he thought about the royal family's inheritance mission that the two of them had triggered, the answer was obvious!
Fang Heng immediately turned his head to look at Tang Mingyue beside him. He activated the alchemy magic array in his hand again and said in a deep voice, "The blood of Andrast, the founder of the royal family, is most likely the 'key'. You are her descendant, so let's try using your blood."
"Alright!"
Tang Mingyue had the same thought. She walked quickly to Fang Heng's side and lowered her head to stare at the magic array.