What is most likely the intent by not stating which character saying from A Wrinkle In Time chapter 7 text Once ten ten. eleven eleven. twelve twelve.?

By not stating which character is speaking in the quoted text from A Wrinkle In Time Chapter 7, the author most likely intends to create a sense of mystery or intrigue. This could be done to grab the reader's attention, build suspense, or foreshadow future events. Additionally, it could be a way to make the dialogue more universal and relatable, allowing the reader to insert themselves into the story more easily.