Themes: Social Media, Friendship, Disappointment, Superficiality, Popularity Annie and Erin are best friends who love KidVid star Cory Mall. His videos get tons of views. When the girls’ parents agree to let them make a video of their own, they hope to become famous. But when Annie and Erin suddenly go viral, they find that fame isn’t all it’s cracked up to be. Hi-Lo Chapter Books for Children. This series of short novels was designed to engage a broad spectrum of struggling readers. No longer will upper-elementary students have to read material junior to their maturity and interests. Characters are age appropriate and come from diverse cultures and backgrounds. Science fiction, sports, paranormal, realistic life, historical fiction, and fantasy are just a few of the many genres. Books are no higher than a 1.5 reading level, with illustrations on every spread that support visual literacy and draw kids into the text.