
sheldon is shocked that there is an anonymous letter from the sender telling him to go to a long abandoned house in the middle of the city that his father said the old house was not habitable plus did not want to stay the old house because the owner is the first born family to trigger a relationship between humans and the Remnants.
finally try to think who told him to come to the house but what he had in mind was the house owned by the Alex family who had long been abandoned until it was not habitable but the map in the letter told him to come get there because there might be something important.
sheldon goes to training to train with Alex's father's spirit but it's in his mind that Alex's father told him to come to the house but kept it a secret despite the sheldon's fact that Alex's father sent the letter he trained until night because the time of their fight was near, just a few months away.
the next day sheldon's training holiday tries to go to the city for the location of that map when he sees that the map leads to a bookcase filled with puzzles according to the one on that map and while finishing his puzzle opened a secret door that led to the basement of the house containing ancient scrolls and important scrolls long gone carrying all those scrolls to study in his house because maybe the spirit of Alex's father told him to bring all important items in his house as to be guarded by him because only sheldon can keep the items.
after until sheldon put in his library maybe someday it will take finally not find the power of the timekeeper and four stone timekeeper stored for a long time.
alex's strength is a time traveler and while sheldon's strength is a timekeeper his father does not yet know only Alex's father who knows about this from there all raise a lot of questions in the mind that all this sheldon and Alex has long been connected because their destiny is like the sun and moon that are destined to improve the world with his space time abilities ranging from sheldon asking Alex's father not to talk from the beginning about secrets alex and Sheldon are interconnected as users of spacetime capabilities unknown to anyone.
trying to find out about the sun and the moon turned out to be a joke that many consider just a mere trusted by Alex's father finally chose to keep it secret about all that sheldon just understood that all this time that's what Alex's father kept secret from his own family.
knowing his own family even ugly and consider a strange person like others because of that Alex's father kept it secret waiting for the right time to talk about his big secret so far so that sheldon instead having told him the secret at last Alex's father's spirit told him all that for good reason let it be known to run the time it would be revealed sooner or later because it was the secret About destiny about alex and sheldon.
episode 17 \= time traveler and time keeper