The Shadow and the Shield

Nico di Angelo has always been good at staying in the shadows.
Reyna Avila Ramírez-Arellano has always been good at standing in front of everyone else.
They're opposites in almost every way-one a son of Pluto who prefers solitude, the other a daughter of Bellona who carries the weight of an entire legion on her shoulders.
But somehow, they keep finding their way back to each other.
What starts as a friendship slowly becomes something neither of them expected. Between Camp Half-Blood, Roman secrets, old wounds, and the pressure of being demigods, Nico and Reyna have more than enough reasons to keep their feelings hidden.
And with Jason and Piper occasionally adding their own brand of chaos to the mix, keeping anything secret might be harder than they thought.
Because sometimes the person who lives in the shadows needs someone willing to stand beside them.
And sometimes even the strongest shield needs someone to protect them, too.
Somewhere between the shadows and the shield, they find each other.