The more she hung around with Silver Spoon, the more she had got to like her. No wonder the original Diamond Tiara liked her so much. She'll like it so much more as a Changeling, really she will. Feeding off love is the best kind of nourishment in the world, be it the warm love of a parent or the sweet love of a coltfriend or marefriend. One evening when the two of them were together chatting about the latest idiotic things that the blank flanks in their class had got up to, Diamond leaned in as if to whisper to her, and slipped her fangs into her best friend's neck, paralyzing her, then rapidly spun a green silken cocoon around her and hang her up in a corner. Within an hour the cocoon had split, revealing a new Changeling. Whilst it had all the memories of Silver Spoon, it was not her. It bowed low, much to the new Diamond's surprise. "Your Majesty, what do you want me to do for you?"
"Your...Majesty?" Diamond asked, surprised.
"As the only other Changeling in this region, and the first to sire a new Changeling, that makes you the Queen now. What do you want me to do?"
"Well, first change into Silver Spoon before anyone sees you. Then, I need new Changelings to create a hive. Target them with care. Don't target your parents as you'll be cutting off your favorite food source. Don't target those annoying blank flanks, I have my own plans for them. And be very careful not to get caught when you change anypony." She grinned, as the new Changeling was giving her love of her own. Over the next few weeks and months, the more new Changelings grew, the more love they gave their new Queen and the bolder they were. In April, they changed Miss Cherilee. In May, they targeted the three Royal Guards and the sole detective that served as Ponyville's small police force and changed them. By now Diamond was addicted to the love she was getting from each new changeling; the more love she feasted upon from so many different sources the more she desired, even though she was in danger of cutting off the sources of love to her fellow hive members. On her orders the Mane Six were left well alone; she wanted to leave them until she was sure that they could be overpowered.
In June, Nurse Healall came into Ponyville and came across Diamond walking with Silver Spoon. Oh my...either the diagnosis of a broken neck was wrong, and the patient recovered, or we have a Changeling in Ponyville. She wrote two letters, one to the hospital explaining just who she had seen walking around, and the other to the Princess Celestia herself. Anypony could write to the Princess, although very few of these letters were ever answered. She handed them to Derpy the mailmare and paid for first class postage and then hurried to the Ponyville police station where Detective Sergent Look Hard was manning the front desk. "What's wrong? You look terrified."
"I've either seen a miracle cure or a Changeling walking the streets of Ponyville. Months ago, Diamond Tiara Rich was brought in with a broken neck, and discharged to spend her last hours with her family. And I saw her walking along totally unharmed."
"Who else did you tell? Accusing another pony of being a Changeling is a serious matter. If you spread the news all around Ponyville and you turn out to be wrong you could end up being sued in the civil courts and have to pay a large number of bits." He came out from behind the desk and walked up to her.
"Apart from you I sent two letters by mailmare, one addressed to the hospital that I work at and one addressed to Her Royal Majesty, but that's all, I have not told anyone else in case I am indeed wrong."
"Excellent." The detective fanged Nurse Healall and soon enough the irritating informant was hanging from the ceiling in an empty police cell within a cocoon. The cell was left unlocked, once the cocoon hatched the Changeling that emerged would be totally loyal to the Hive and the Queen. Then he spread his wings and flew off on a search for Derpy. For the sake of the Hive I have to stop those letters, most of all the Hospital one. The one to Princess Celestia is unlikely to reach her, but the other one could bring a world of trouble upon everyling. Soon enough he caught up with Derpy. "Derpy, somepony with a grudge about a failed legal case sent hate mail to Princess Celestia and a hospital. I have to impound it to avoid it causing any trouble and so that I can make a case against the pony who did this." He tapped the badge on his uniform with his hoof and Derpy did not object as he found and took the two offending pieces of mail. Then he hurried back to his Queen. After a search he found her window-shopping with Silver Spoon. "Your Majesty,"he said quietly, "somepony found out who you really are and tried to warn Princess Celestia. That pony has been...changed."
"Excellent," Diamond said. "Almost everypony in this town has been changed, except for Filthy Rich, the Mane Six, and a handful of others. If we can take out the Mane Six one at a time, we can trick Shining Armour and then the Princesses here and if they can be overpowered, then Equestria is ours for the taking." Privately, she was a little worried. I should have just changed Silver Spoon and maybe one or two others, and we could have lived off the love of our unknowing families for the rest of our lives. But because I wanted more subjects, a whole hive full of them, nine-tenths of Ponyville are now Changelings and there is only enough love to go around for a day or so before we must expand or starve. Why did I do this? I never set out to become a Changeling Queen or to try and conquer Equestria; things just got totally out of hand. No wonder other races have no love for Changelings.