I am a very big fan of the Marvel Universe because every time it sticks in my mind and forces me to explore. This time I am stuck with the actions of Agent Ward in Season 1, Episode 4 of Agents of Shield.
In that episode, Agent Ward goes to some secret facility to take a snapshot of an alien language. Only those who have taken the drug G.H. can write it, and we also know that only two persons have that drug inside them. And one of them got that drug at the last.
So my questions are: who wrote the language in that facility? Does anyone else have the drug too, because according to SHIELD only few people know about it. And according to Lady Sif no such alien has come to Earth, so where could the language in the facility have come from?