Everything you need to know right here:
http://members.ozemail.com.au/~imcfadyen/notthenet/fantasy.htmMy favorite is number 8:
8. Skip the hard parts.
Despite the need to keep the book long, some bits are just too hard to write. A thousand mile journey by foot is long, but easy to write. Battles on the other hand are hard because there’s a lot going on and you probably require some knowledge of military strategy. So if you’re writing a battle scene and it’s just getting too hard, simply have the hero suffer a wound and lapse into unconsciousness: e.g.
"… then suddenly his head exploded and a mist enveloped him and he felt himself falling down into an ethereal tangible blackness. Badcolds’s sword, still swinging through the air, seemed caught, imprisoned in time. The sound of the battle was suddenly a long way away but just as he closed his eyes and the black cloud engulfed him he thought he heard someone crying from the grassy knoll, "The Toasters are coming. The Toasters are coming."
Voile. Next thing our hero wakes on a white alabaster slab in the Healing Room where the Pure Maiden Warrior (see "Characters" below) tells him that the battle is over and, Guess what? They won! Result: you've saved 50 pages of intricate military description.