The Life Impossible by Matt Haig (same author as The Midnight Library) is a science fiction-type tale with philosophical thoughts about appreciating life, fortitude through trauma and care for the environment.
Retired teacher Grace gets a letter from a former student who is going through a tough time in life. She uses the opportunity to share her own story with him in hopes of providing encouragement.
Grace is a somewhat recent widow who also lost her nine(?)-year-old son to a bike accident years earlier. She has existed in a world of depression and guilt ever since. Drastic changes are in store when she receives word that a former coworker named Christina left her a home in Ibiza.
Grace decides to go to Ibiza to find out what happened to Christina. In doing so, she finds herself part of a plot full of magic stemming from an otherworldly energy in a protected area of the ocean.
This energy is called La Presencia. Grace’s encounter with it gives her superhuman abilities which she now must consider using to fight the evil force that is determined to destroy Ibiza’s protected areas.
Through her time in Ibiza she meets new friends while discovering Christina’s fate, fights against negative forces, and learns to truly live again.