After looking at the full res version I see some typos. It should be "Allan Quatermain, the world's greatest." You forgot the apostrophe. You also misspelled the word "comprised." You also misspelled "off" in the line, "setting off a domino."
If you make these changes than I suggest you do two things as well. With some simple kerning changes you can prevent that last word in the synopsis from falling on its own line. It looks kinda lonely all by itself. Also the top left of the cover is very dark and the first words of the 1st and 2nd lines might be hard to read when printed. I can just barely make out the word Sean on my monitor.