" All that coastline we've been sailing pas is it, but I guess back in the Roman times it was called ... what'd you say, Jason? Bodacious?'
'Dalmatia', Nico said, making Jason jump.
Holy Romulus ... Jason wished he could put a bell around Nico di Angelo's neck to remind him the guy was there.
Nico has this disturbing habit of standing silently in the corner, blending into the shadows. "

― Rick Riordan , The House of Hades (The Heroes of Olympus, #4)