The 49-year-old actress took to Twitter with a heartbreaking reaction to the sudden passing of the Hollywood legend, who was the mother of her late half-sister, Carrie Fisher.
"Some of the magic people have left the tribe...for the moment I am inconsolable…" Joely tweeted on Wednesday along with three broken heart emojis.
Joely also revealed her plan to write a book, tweeting on Thursday, "You can't 'right' this s**t but you can 'write'...get ready world...my book is coming."
Reynolds was initially hospitalized after suffering a stroke on Wednesday, at which point Joely tweeted a photo of herself and the film icon, along with the caption, "God speed mama."
Reynolds died hours later. She was 84.
Her death comes as an devastating second blow to the family, amid the "unfathomable" loss of Carrie, who died on Tuesday, just one day before her beloved mother. The 60-year-old Star Wars actress never regained consciousness after going into cardiac arrest during a flight from London to Los Angeles last week.
Joely broke her silence on Carrie's death with an emotional tweet that reads, in part, "The earth is off its axis today...how dare you take her away from us."