The disappearance of the queen

After I left the farm with the other ponies, we all went to Twilight's library.  As we were walking to the library, Twilight was asking questions with an eager grin as I answered them.  "So when were you born," Twilight said.  "I don't know my exact date of birth, as all changelings are born from a pond," I said.  "Why is Chrysalis your queen," Twilight asked.  "She was the one that gave birth to the original changelings," I said.  "I hate to ruin your conversation but we're here," Rarity said.  "Whoa, this was not what I was expecting," I said.  "Yeah this is the ponyville Library, and my house," she said.  As I entered the house a smell of paper and flame residue filled the room.  When I looked around the house, not a speck of dust entered my sight.  "Twilight, do you do the cleaning around here, because whoever does is splendid at it," I said in glee.  "No I actually let my assistant Spike take care of that," Twilight said blushing.  "Yo, Twilight I organized the library books like you asked," Spike said. "Is that a dragon, I've never seen one up close like this," I said a little too overenthusiastic.  As I was marveling at the dragon, he belched out a message.  "Oh sorry, this usually doesn't happen at this time of day," the dragon said as he was frantically looking for a tissue.  "No worries my good dragon, I keep a handkerchief with me," I said with a grin.  I levitated the message to Twilight, while Spike cleaned his mouth with the handkerchief.  As Twilight read the letter, I decided to take a look around the Library.  "Are you the only one who lives here, do you know who the original owner was," I said dusting off a few of the books.  "I don't know who the original owner is, but this letter is from the princess, I'm sure she knows," Twilight said rolling the letter back up.  "Alright, but can I borrow a quill and some paper," I said.  "Sure, just take these," she said handing me the small stack of paper, with a neatly organized ink and quill on top.  The letter read, Dear Princess Celestia, Do you have any knowledge on the original owner  "So Twilight, how exactly do I mail this," I said levitating the letter with my horn.  "Oh right, forgot you can do that," I said blushing.  "So, while we wait for her reply, we can have some tea and talk about the species you've encountered," Twilight said preparing the tea.  "Sure, which species do you want to know about," I said.  "lets just start with the changelings themselves," Twilight said pouring the tea into the cups.  We talked for hours before we realized how late it was becoming.  "Well Twilight, its getting late, I better get some sleep," I said with a silent yawn.  "Alright, but what a out the letter," Twilight said showing me the letter.  I levitated the letter and opened it.  As I read the letter I got more and more interested.  "Twilight you would probably be more interested than me," I said with a smile.  "What is it that got you so interested," Twilight said.  I levitated the letter to Twilight.  "Is this who I think it is," Twilight said ecstatic.  "Its, the original creator of the changelings, StarSwirl the bearded," I said excited.  "Wait StarSwirl created the changelings," Twilight said confused.  "Yeah he created them in secret, never letting anyone but the original changeling know," I said.  "And that changeling was Queen Chrysalis," Twilight said curious.  "Yes, she was the first of our kind," I said.  "How was she born," Twilight said. "I'll save it for another time, tonight I'm to tired to tell you," I said.