The Last Kids on Earth and the Forbidden Fortress

In the eighth installment of the bestselling series, the Last Kids reunite but soon find themselves confronting a new and formidable challenge. Within a treacherous other-dimensional fortress, the malevolent Thrull and a dangerous new foe are plotting an ominous scheme. Jack, Quint, June, and Dirk must devise a clever strategy to infiltrate the stronghold and thwart Thrull's progress on the ominous Tower, which poses a grave threat to their dimension.