Have you gone to see an Alien Gray? ...Oh? I guess you haven't gotten much out of it. Of course, not. The Grays are way too intelligent to reveal their weaknesses. Shall we go with option number 2 then?

I have found through extensive research that the Grays converse by sending ultrasonic waves from their tentacles. Unlike talking with their mouths, only truths are told through the waves. You will be able to get to the bottom of this if you direct the conversation in the right way using the waves, and encourage them to respond to your question.

Of course, you can't just decode the waves. I'm still in the beginning stages of my research, so I need a number of materials to build a Wave Translator. Won't you find me the materials so I can build a Wave Translator?

There are a number of things you must get. First, I need 30 Small Spaceship, 30 Receiving Apparatus, 1 Chief Gray's Sign... and 10 Gray's Tentacles. I need all these things to build a Wave Translator.

Hmm... you seemed competent enough to get those things done easily...

Oh, you've brought all the materials I need. Give me a few moments. I will build you a Wave Translator.

(...Bang! Bang! Bang!)

(...Cling! Cling! Cling!)

(...Creeeeak...)

(...POW!)

Here it is. The completed Wave Translator. I haven't had the chance to test it since I built it in such a hurry... so don't be alarmed if it malfunctions. Just come back to see me if it doesn't work properly. I'll make another one for you if you just bring me the materials.