Gravity is the thing. Jaclyn Moriarty. 2019.

Abigail Sorensen has spent her life trying to unwrap the events of 1990.

it was the year she started receiving random chapters from a self-help book called The Guidebook in the post.

It was also the year Robert, her brother, disappeared on the eve of her sixteenth birthday.

She believes the absurdity of The Guidebook and the mystery of her brother’s disappearance must be connected. 

Now 35, owner of the Happiness Cafe and mother of four-year-old Oscar, Abigail has been invited to learn the truth behind The Guidebook  at an all expenses-paid retreat.

What she finds will be unexpected, life-affirming and heartbreaking.