Growing The Black Wing

After sorting out the several gadgets and contraptions in his bag, there were only two things remaining on his bed. 

The unnamed strengthening serum and the Black-Winged tiger's nucleus. 

Turning his attention to the nucleus. He grabbed it with shaky hands and without hesitation, he placed it in his mouth and crushed it with his teeth. 

The crisp sound of something crunchy could be heard in his room as David repeatedly grind his teeth against the hard nucleus. 

In just a few seconds, it had turned to powder and he swallowed it up in one gulp. 

The room remained silent for a few seconds and only David's faint breathing could be heard. 

A few minutes passed and David instantly furrowed his brows, he couldn't feel the frequency of the vibrations that would produced that ability except from the vast amount of energy assimilating with his flesh, he couldn't sense anything else.