If you have the book in your inventory, click on “Capture Epic Saga” and select the Sim you would hate to lose. You can only use The Book of Life once per Sim. Max out your Writing Skill and complete your Aspiration goals to get the Poetic Trait reward that unlocks The Book of Life.
Sims who have a passion for writing are the only ones capable of making The Book of Life. If you don’t have a Sim that has the Bestselling Author Aspiration, enter Create-A-Sim mode and bring that Sim into existence. Below are the steps on how to write the Book of Life: This method will only work if you’ll be able to recite the book to a Sim before he or she dies. You can bring back Sims from the dead by authoring The Book Of Life. This isn’t a foolproof way to resurrect Sims as the outcome of their wishes will depend on the ever-changing mood of the Wishing Well. In The Sims 4: Romantic Garden Stuff Pack, your Ghost Sims can wish upon a Whispering Wishing Well that they be brought back to life.
If you own The Sims 4: Realm of Magic, you can order your Spellcaster Sims to restore the lives of deceased Sims. There are other ways to undo Sims’ death which no longer involve too much gardening and fish angling, although you’re still required to polish up on your skills.