Second kill

Once they entered his body, they turned into strands of energy of varying thickness which flowed to his head and into the soul-dwelling region in his head where they infused into his soul, strengthening it and passing great amount of knowledge about so many things to him. Also, he got a vast map that gave locations of legacies of dead ancient experts, caged or slumbering divine beasts, dormant eggs of monster pets, buried fearsome treasures and so on.

He then thought of the systems his parent mentioned to him earlier. Especially the 'Beyonder Library System'. He felt that with the system, when one acquires comprehension of thousands of energies and cultivate them, one would achieve the Supreme Alpha Eternal stage.

The Supreme Alpha Eternal stage which can only be reached by comprehending and cultivating tens of thousands of realm-energies and then fusing them can be accomplished with the library system. So Alex felt.