Ada travels from her grandmother's basement to Nikola Tesla's New York workshop in 1893. Tesla shows her a glowing glass tube near a giant coil and explains alternating current. At the Chicago World's Fair, Ada nearly unplugs a main cable, fixes it, and watches thousands of lamps blaze. She returns home knowing alternating current carries electricity far away and still powers her outlets.
This is a Level 12 book on Castle Island: rich 22-page stories for confident readers. It is a book to read together; audio narration is not included at the moment. In the app your child can read it, record their own voice and take a short quiz — earning up to three stars for their crow.
Included in Class Readers Premium. Selected books are free to try.
Four ways to enjoy this story
Read
Every word ready to help.
Read to me
Listen while each word lights up.
Record me
Read aloud, then play it back.
Quiz
No mistakes wins a star.
Questions about The Night of a Thousand Sparks
Is "The Night of a Thousand Sparks" free to read?
"The Night of a Thousand Sparks" is part of Class Readers Premium, which unlocks every book on all 12 levels. Selected books are free to try.
What reading level is "The Night of a Thousand Sparks"?
It is a Level 12 book on Castle Island in the Class Readers Reading Sky: rich 22-page stories for confident readers.
Does "The Night of a Thousand Sparks" include narration?
This book does not include audio narration at the moment. Read it together in the app, record your own reading and try the quiz.
What age is "The Night of a Thousand Sparks" for?
Level 12 books suit children who are reading longer stories, usually around ages 7–10, including children learning English as a second language. Choose by reading ability rather than age.





