There were five of us at the beginning yet two have already fallen to human ingenuity. One died in an accident while the other revealed itself at the wrong place. I know this because I gained their memories as the others did. I doubt they would've died so easily if they had gone through their hosts' memories although I find it might be my strangeness that allowed me the patience to do so.
At the moment, I am quietly living out my host's life as a college student while sending my spawn out to infect other living beings. Although, unlike myself, my spawn cannot reproduce without mating, I have designed them to hide in the various things around humans.
From the spiders to the flies to the ants to ticks and even to things that cannot be seen with the naked eye. The infected do not change much. They have the same habits. The same memories. The same likes except that they gradually become better people working earnestly to get promoted to infect higher ranking people.
With how quickly transport works, and the fact that even aquatic and avian creatures are not safe from my spawn, it won't be long before all human minds are usurped. By then, my spawn would have found and destroyed my sibling.
Then... then I will see how well the Monarch can keep her title. But first, my ice cream's melting