Dear Echo,

You're going to need every last bit of help you can get if Scootaloo is going to be able to control her new powers. I'll need to drop the act and reveal myself to everypony just as you have done if I am going to be of any real help. I have been working with Twilight in secret since before you crashed in the Everfree Forest. Disguised, I found you at your welcome party. You may remember me as the "pervert" you nearly knocked unconscious. If you recall, he was a tan stallion with black hair with gray bands, had a cutie mark of a puzzle piece the same dark violet as his eyes. He is – that is to say, I am – Puzzle Piece. Write back to Twilight if you need to, or we can meet at the library. I will need your help in explaining myself to Chrysalis. I think I'm ready to face her now.

Your Shadow,
Rebound

Dear Echo,

Tell Twilight she is mad. How can she think queen Chrysalis will be accepted when you, Scootaloo's savior, are barley accepted in Ponyville? I cannot stand by when the both of you are putting yourselves at risk. I will be able to assist you or queen Chrysalis once I return to the Everfree this afternoon.

Your Shadow,

Rebound

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Dear Twilight,

Are you mad? How could you possibly think having the changeling queen parade around Ponyville undisguised is a good idea? Unrelated to your insane antics, your hypothesis was partially correct and needs revision. We have a lot to to about once I return from the field. I expect to be in Ponyville at about noon. I'll be in the library's east wing organizing the notes about the experiment.

Your Assistant,

Puzzle Piece

Dear Echo,

You have always had respect from me because you demanded it as an officer. I was always wary of your presence, lest I cross the line. You were, and still are, a force to be reckoned with. You fell to Ponyville after the failed invasion as a changeling officer trying to survive. You didn't trust anypony, you were hard to approach, you were constantly on edge. Ponyville has stripped you of that, and I couldn't be more proud. You have become approachable, friendly, even joyous to be around, but most importantly, you have become a mother. I'm sorry I couldn't help get Scootaloo back, and I'm even more sorry because it may have been my fault that Cluster was led to Ponyville of all places. Give queen Chrysalis my regards. I cannot face her until I can find a way to redeem myself from what has happened in the war. If you wish to write back, leave the letter with Twilight, you can trust her.

Your shadow,

Rebound