edit-the title is supposed to read "when" still a beginner...
I would try it - no harm right? If it already works, great, and if not, there is no shame in it, either. The only bad thing would be to get discouraged ... native-level material is tough, in any language :-). Having read the books before in English certainly helps (and translations from foreign languages are often easier, too)
Another thing I found helpful for reading is electronic aids like the built-in dictionary in the apple ibooks app (they have Korean) or the perapera browser extension for Firefox (for Japanese and Chinese - maybe there is something similar for Korean?). Reading paper books is about the hardest you can do, because it makes dictionary look-up frustratingly slow. That being said, with Korean being phonetic at least you will know how to pronounce unknown words, and maybe their meaning will become clear from context ... (in CN/JP that often becomes: "and then he said to the XX: you know, you really should XX in order to XX otherwise the XX will never - what? :-D).
Aurelio:I did 2 online tests for Korean-one said I was intermediate and the other put my level about a third of the way into B1. I don't know how accurate they are but do you think that's enough to be able to attempt to read the books when they come? Or will I be wasting my time until I improve ?