There are several ways to approach the problem of suitable reading instruction for gifted students. One is to use reading recovery levels as a guide but also pay close attention to the book descriptions to ensure the content is suitable. Another is to use a range of text types (non fiction books about topics of interest, newspapers, magazines, journals and web pages, as well as atlases and dictionaries) to provide additional sources of reading instruction for a gifted child. Gifted students can also be encouraged to extend their learning in a wider range of directions from a single text compared with their peers. Another useful solution is to check out some second hand book stores and look for older fiction texts that sometimes have a larger vocabulary and more complex sentence structures than more recent texts, and are aimed at younger readers. For example, 'Little Women' or 'Seven Little Australians' or 'The Adventures of Huckleberry Finn' can be used. Classic stories such as 'Moby Dick' often have abridged versions available which can also be useful. There are often extensive fiction book lists available online through gifted education organizations.
Source: information is from author experience.