Race to the Great Invention

There’s nothing magical about the end of 6th grade until Tessa and her best friend Gus meet their mysterious neighbor Professor Henchworth. He gives them a magical spyglass called a vider, and an unexpected adventure begins. The vider shows them things are not as they seem: a brilliant Unseen world surrounds them — and it’s in danger! If the Unseen disappears, their world will too. Only Tessa and Gus can prevent disaster, but sinister Shellstalkers spring up at every turn, and time is running out. With help from Gus’s little brother, the kids must race to save life as they know it. Will they make it in time before people they love disappear for good?