Meet the Secret Explorers! This group of brilliant kids comes together from all four corners of the globe to fix problems, solve mysteries, and gather knowledge all over the planet - and beyond. In The Lost Whales, marine life expert Connor needs to use his underwater expertise to help save a pod of humpback whales that has lost its way. Along with space expert Roshni, he sets out in a submarine to search for a way to steer the whales back on track.

When Areli was just a baby, her mama and papa moved from Mexico to New York with her brother, Alex, to make a better life for the family - and when she was in kindergarten, they sent for her, too. Everything in New York was different. Gone were the Saturdays at Abuela's house, filled with cousins and sunshine. Instead, things were busy and fast and noisy. Areli's limited English came out wrong, and schoolmates accused her of being illegal. But with time, America became her home.

For centuries, blue powders and dyes were some of the most sought-after materials in the world. Ancient Afghan painters ground mass quantities of sapphire rocks to use for their paints, while snails were harvested in Eurasia for the tiny amounts of blue that their bodies would release.

Stacey is a little girl who loves words more than anything. She loves reading them, sounding them out, and finding comfort in them when things are hard. But when her teacher chooses her to compete in the local spelling bee, she isn’t as excited as she thought she’d be. What if she messes up? Or worse, if she can’t bring herself to speak up, like sometimes happens when facing bullies at school? Stacey will learn that win or lose...her words are powerful, and sometimes perseverance is the most important word of all.

It's the summer before middle school, and 11-year-old Bug's best friend, Moira, has decided the two of them need to use the next few months to prepare. For Moira, this means figuring out the right clothes to wear, learning how to put on makeup, and deciding which boys are cuter in their yearbook photos than in real life. But none of this is all that appealing to Bug, who doesn't particularly want to spend more time trying to understand how to be a girl. Besides, there's something more important to worry about.