The moment Selma and Paul struck a deal, Eddie knew there was no longer a chance for Mahamadu.
Not a single pirate king could defeat Paul, who now possessed both the Sea Demon and the Sea Beast.
All three pirate kings combined wouldn't stand a chance unless the Sea God were reborn, or they found the Sea God Scepter to break Jannie's seal.
Yet Paul and Selma, both fond of their shenanigans, were already concocting a fake Sea God Scepter, aiming to prevent Jannie from obtaining the Sea God's Power.
To be honest.
Eddie saw no hope of winning.
The real world isn't a legend novel, and Mahamadu isn't an immortal righteous protagonist. Just like Laurent Swann was suddenly beheaded by Paul, they couldn't possibly defeat a super-villain.
So.
Eddie naturally betrayed Mahamadu from deep within his heart and became Paul's glorified general, preserving the Stone of Glory for him.
Despite the fear it cost him, he didn't care in the slightest...
...