What if Lilo and Stitch was a book series?

Lilo and Stitch is considered one of Disney's best films in the 2000s, spawning sequels and a few TV shows. But what if it was a book series before a movie?

Changes

 * Lilo and Stitch would have been a book series created by Roald Dahl from 1968 to 1986.
 * In 2000, Disney buys the rights to the books and begins developing their famous film.
 * [Disney hires a new author to do a new batch of Lilo and Stitch books or nah]

Books

 * /Lilo and Stitch/ (1968) - TBD
 * Lilo and Stitch: Stitch's Glitch (1973) - TBD
 * [maybe an original plot?]
 * [likely finish with Leroy and Stitch or nah]