"Do you wish to burn the letter as instructed?"
The letter also mentioned the Masked Master who is capable of creating armored masks, and a simple high-level iron smith Shell is alluring to Lin Xun, not to mention the subsequent story about 'Belatu'.
He resolutely clicks 'yes'.
"You have shredded 'Unknown Letter', and the paper burns without fire, turning into ashes."
"Acting according to the letter's instructions, you are secretly passing on signals. The anonymous sender will be here shortly..."
"..."
Lin Xun waits in the hatchery hall for the sender to arrive.
In the meantime, he summons the 'Divine Kingdom Flying Dragon', then switches to the Shell of the 'Hatching Ground Lord'.
The sender's origin is unknown, so the best way is to feign a trade with them, try to get information about 'Belatu' and the whereabouts of the Masked Master.
