

Gabi, a girl who Sal befriends over the course of the first book and grows closer to in the sequel, can be described as the optimistic student president of Culeco Academy. After the death of his biological mother several years prior to the start of the book, Sal has been known to find version of his mother from other universes and communicate with them, though they are always different from his version. Sal is a fun-loving magician who can reach into other universes. Main characters include the titular Sal Vidón and Gabi Reál.

After his mother died, though, Sal developed the ability to reach into different dimensions, and he and his new friend, Gabi Real, have an adventure that spans multiple universes. Sal Vidon is a young magician attending Culeco Academy. A short story by Hernandez about the Sal and Gabi characters are featured in the anthology book, The Cursed Carnival and Other Calamities. It was published by Disney-Hyperion in March 2019. It is a science fiction novel that is also about Cuban mythology.

Sal and Gabi Break the Universe is a novel written by Carlos Hernandez.
