what is meant by "i am still a beast at bay"?

That he,Rainsford, is still dangerous, like an animal that has been hunted into a corner. The game is not over yet, this is the most dangerous part for the hunter because his prey is cornered and has no choice but to fight.

this phrase in what version ???? anyhow i think from my critical knowledge that it's still adangerous game for me wether i might be the hunter or the huntee ..