Don't Underestimate Camp Half Blood

So as some of আপনি may have seen, Rick Riordan has shown us that the girl who, in the character art, is wearing the purple dress/toga thing (not quite sure what it’s called) and স্বর্ণ armour and has the two dogs, is indeed Reyna.


Let’s start with the dogs. They are automaton hounds দ্বারা the names of Aurum and Argentium. With a little thing called a translator, and some common sense, I have figured out that their names are of course Latin. Aurum means gold, so the স্বর্ণ dog, and Argentium means silver, so the silver dog. Rick also says that the hounds are deadly.
So my প্রশ্ন is, what is their...