There are 2 books in the Sal and Gabi series. The newest book is Sal and Gabi Fix the Universe which came out in 2020.

1
Sal and Gabi Break the Universe

Book cover of Sal and Gabi Break the Universe
Best-selling author Rick Riordan presents a brilliant sci-fi romp with Cuban influence by Carlos Hernandez, winner of the 2020 Pura Belpré Award.

"I love this book in every possible universe! With a surprise on every page and two of the most cosmically awesome, vividly unique heroes I've ever read, this…
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2
Sal and Gabi Fix the Universe

Book cover of Sal and Gabi Fix the Universe
Best-selling author Rick Riordan presents Carlos Hernandez's sequel to the critically acclaimed Sal and Gabi Break the Universe, a brilliant sci-fi romp with Cuban influence.

*"This book, drenched in Cuban Spanish and personality, is a breath of fresh air."--Kirkus Reviews (starred review)

Among many other challenges, Sal and Gabi have…