Kaiju

It is also because of this that she understood what the Crime Alliance was thinking in the beginning. 

Even if the pirate lords get the weapon, they might sell it in the black market

And the black market belongs to the Crime Alliance. In the end, they would have a big chance of getting the trident. 

As for the competition between the Crime Alliance and the Pirate in this island, it might be the main plan. If the initial plan failed, then the Crime Alliance could still hope that whoever from the pirate side that get the weapon would sell it. 

Mary doesn't know whether she should thank Earthshaker or curses him. Because of the Earthshaker she now knew the importance that the Crime Alliance is attaching to this trident.

Right now, her mind is calculating things. She closes her eyes. And she is frowning. Golden Face is waiting. Gray Becker stands not far away from Pirate Lord Mary, also waiting.