The Keys to Their Ink Castles

As the sentences link together, so do portals to different worlds written in the sentences. It is then made illegal and authors are forced to hide in their works, which are burned. This leaves them with no way to escape. This isn't much of a problem until Fiona and Thomas notice someone had been editing their world. With no known way out, they venture on a quest with their children in order to change the mighty stylo and hopefully save their world before the Ecriters come.