Stuck in the past for the forgotten future

I once read a theory which said that if you travel to the past you can't remember your future, why?

Well, when you travel to the past everything goes backward, right? The physical state of people regresses, an elderly person who travels to the past, would look younger upon arrival. Then, according to the theory, since the mind is part of the physical state, it also regresses, or better said, the information that is in the mind regresses, memories regress. Therefore, a person who travels to the past wouldn't be able to remember their future, wouldn't even realized that has traveled to the past.
Now refutable or not, it's just a theory, but this one got me thinking and I asked myself:

What would happen if it was really not possible to transport information through time?
What if you traveled to the past with a mission, but when you arrive you don't remember what you went for, what's more, you are not even aware that you come from the future and you just live your life as if it were just another day?
I invite you to read the story of Ahysy, an organization that sends an agent to the past and, when communicating with him, discovers that he not only doesn't remember his mission , but, moreover, he doesn't have any future memory. He just lies there, therrified, without knowing where the voices in his head come from. He don't know if they are real real, demons, or if he's just going crazy. Desperate to get rid of them, he commits a stupidity that could change history and that's where the dilemma arises: What should they do with it? Find a way to rescue him or... kill him?! Find out in this totally unpredictable, intriguing and full of mystery story.

Time travel like you have never been presented before, a story that will blow your head off. I hope, you really like it.

Daniel Alcalá Paez.