Wu Chang didn't deny the Great Saint Mother's words; he followed up by saying:
"Your Grace, the Great Saint Mother, you and the Master of the Deep Sea both want to seize Briffer Island. What secrets are hidden on this island that have enthralled you both so?"
The Great Saint Mother knew Wu Chang would certainly ask this; she didn't directly explain but instead used a space-like ability to take out a complex large-scale alchemy device.
The main body of the device is a bottle with a mystical array inscribed around the neck, capable of absorbing the stray magic energy from the air.
Beneath the bottle's belly, dozens of hollow copper tubes are arranged equidistantly, with the ends of the tubes connected to a balance covered by a glass dome.
Wu Chang had seen a similar balance in Ebert's memories, measuring not physical matter but the "mass" of elements.
