Here's why I am asking: I'm thinking about writing the ENTIRE series featuring the South American triplets first, THEN issuing them all at the same time. 3 books, all linked to The Water's Kiss.
It means delaying the release of the first two (#1 is done, #2 is about 1/2 done), but it also means having all of the books out -- with a possible fourth, as Esteban might get his own book.
Or -- is it better NOT to sit on them, and to publish as they're done?
Give me your opinions in the comments, please!