The Bunny Wabbit of Doom's plan

Finally the the mysterious unknown visitor has returned. They didn't chat this time, he just left an envelope. Which I obviously stole and replaced with an empty one. Don't worry the Bunny Wabbit of Doom wont catch me. He wont be reading the letter for at least another hour. He's still sleeping. Anyway, when I opened the envelope it contained a sheet of paper covered in numbers. Some sort of code. The code is the one that The Bunny Wabbit Of Doom always uses. 1=A, 2=B, 3=C, 4=D, 5=E and so on and so on. The dots divde the letters so you don't think AB (1.2) is L (12). Two dots in a row are a full stop. _ is a space, question marks are queston marks, commas are commas. So, I decoded the letter and it said-

Your Majesty,
Plan=be bitten by emzb. Emzb location= ? Do not build fire. Scares them away. Good luck.

So that's his plan! He boviously still wants to become an evil mutant zombie bunny (I guessed that was what emzb stands for). I better stop him! What with Christmas coming and the goose getting fat (not for me this year-We're having a vegetarian Xmas dinner.... or lamb) I'll be busy! Sorry if you guys wanted to decode the letter yourselves. I was going to get you to do it but I didn't think you would be finished in time. Well, if you want you can re-code it. Or decode this 3.15.4.5. Now, I'll go bring the BWoD his breakfast. Oh no! He's already gone. I better find him and save the world! And I suppose Mystery Man will insist on coming too, make the whole thing a lot more difficult and then get all the credit for saving the wrold. Not fair!