"Could it be that these eighteen bone demons have been absorbed into this black ancient sword?" Fang Lin looked surprised, attempting to communicate with the black ancient sword to see if he could summon the bone demons.
With this attempt, Fang Lin managed to actually summon one, and a bone demon appeared right in front of Fang Lin. Meanwhile, the skull mark on the black ancient sword lessened by one.
Fang Lin was overjoyed in his heart—he had truly stumbled upon an immense treasure.
Initially, he thought this black ancient sword was a divine weapon left from ancient wilderness times, but now it seemed the sword's greater purpose was to control these eighteen bone demons.
As long as one's mind could communicate with the black ancient sword, they could command the eighteen bone demons at will.
In this way, Fang Lin essentially had eighteen bone demons at his command, possessing eighteen peak-level immortal powerhouses serving him.