In order to heal after his mother’s death, thirteen-year-old Sal learns to reach into time and space to retrieve things–and people–from other universes.
- ISBN: 9781368022828
- Published: 2019 , Rick Riordan Presents
- Themes: children and parents, Death and dying, Death of a parent, Hispanic and Latino, Time travel
- Descriptors: Cuba, Intermediate (ages 9-14), Science Fiction
- No. of pages: 400