A possibility is that Tracker could have been monitoring your movements for quite a while so as to seize the opportunity to whisk you to his mansion as soon as he could, like a wolf patiently stalking his prey. As soon as you were detained, Tracker would have forged the letter immediately and made sure you were placed in "rehab" as soon as humanly possible.
We'll figure it out, don't fret.
Tracker is quite fine to let them go about their business as long as they don't encroach on his territory. However, this "hunt" of sorts would have been jump-started into existence once Tracker found out that a certain disease he's had for a very long time (a short time before he became evil) has suddenly increased in aggression, and that he's likely to die within the year.
Naturally, Tracker decides to go out in a blaze of glory.
As for the first sentence, I am very pleased. I had been suspecting you had been cooking something up during your absence.
As for the second, I'm afraid I'm unable to secure another way of message relay.
As for the third, yes, we could meet in-game sometime. Would a weekday, sometime between 1-7 EST work for you (preferably this Friday or next Monday)? (I'll warn you in advance, the chat is broken, so the only means of communication in the Aetherlight game is a crude yet effective code that I've constructed using the in-game actions.)
As for the last sentence, if both of you have been talking about it, I'm fine with your discussing it outside of my knowledge. I've been roleplaying with @Eerie_Coppernight for over two years now, and I've come to trust her (and her plotlining) completely. From what little I've seen of your roleplaying and plotlining (and from Caleb's comments), I've slowly entered into an area of trust for your roleplaying prowess.
Though it is preferable that I have a say in what you two have been cooking up, whatever you both decide/agree on, it's almost a sure thing that I will concur with your plotline.