Comfort of a Home [Bonus]

POV Vesuvius:

The massive body of the basilisk fell to the ground, neon-red flames slowly consuming it.

The dragon just stood there watching it burn, his anger at the snake's trickery slowly subsiding after its death.

He was still confused about the mysterious system dinging. There was only sound but no text.

'Ding!' It dinged again in his head, making him even more confused.

'Ding!' and then again.

A warm feeling of levelling up spread through his whole body and soul, filling him with adrenaline and warmth.

His pool of mana increased slightly, with his muscles strengthening slightly. He would even swear that the world around him became slower by a minuscule amount.

'Have I just levelled up? But why is there only a sound but no interface? Then If one ding was for level up, what were the other two?'