This third book in the chapter book series about a young Indian American girl who loves science and has a big imagination soars through outer space--perfect for fans of The Magic School Bus and Over the Moon! While Sejal and her cousin, Ash, are working on a science project, Sejal's mom tells them planetary scientists believe it rains diamonds on Neptune! Investigating that theory sounds like the perfect next adventure to Sejal. Togther with Ash, Professor Cheetah, and a lot of imagination, Sejal sets off on another out-of-this-world adventure. But getting to Neptune might be harder than she thought...