Miguel is searching for a person he isn't sure exists, using a binder that a former student gave him. He is convinced that the person is real and that finding her through the clues in the writings within can lead to a better world. He decides to do anything and go everywhere to find her while journaling about it along the way. Her name is Sti-La. In the present, she is the 4200-year-old, anonymous wife to a military officer named Samual and mother to a daughter named Felina. In the future, she will be the last person left on Earth for billions of years. She spends her time trying to raise her daughter to be a strong woman that values intelligence and can survive on her own if need be. We follow both for the entirety of Miguel's adulthood to get the full story, with a twist.

MIGUEL: THE SEARCH FOR STI-LA is a follow-up/addition to 2021's MEMOIR OF AN IMMORTAL. Told in dual perspective: while Miguel journals about his life and difficulties trying to find Sti-La, the reader gets to see just what Sti-La is up to at that time and whether or not he guessed right. Does Miguel accomplish his goal? Or does Sti-La's life progress unaffected by her future?