Jules Verne, maybe?
This is a hard age that way-- and I wouldn't assume that listening lexile and reading is so dramatically far apart anymore at this age. That's true for a while, certainly, but by the time kids (meaning HG ones here) are into high school, not as much.
What kinds of interests and sensitivities (if any jump out at you) are you working around?
Dickens is lovely as read-aloud material. Some Poe is also nice. The original Sherlock Holmes mysteries are also good, and much better to modern readers when read aloud.
