Poptropica Graphic Novel Reader
From here, you can read every single page of the Poptropica Graphic Novels that are published online, such as Mystery of the Map. Why would you use this instead of the official reader, you ask? Because this one has much more convenient controls and you can see pages that are hidden (for example, because they're not released yet).
If you notice any bugs with the reader (as it's in an early stage) or have any suggestions, always feel free to contact me!
NOTICE: None of the graphic novel page images that you can view here belong to Poptrickia; they are the intellectual property of Poptropica.