And then it came...the all-out assault the Westerosi had feared. In the darkness, 15,000 Zonian troops and sailors charged out of the woods towards the front wall. The big guns blazed after the alarm was called. The explosions gouged up men and dirt from all over the field, but it wasn't enough. Westerosi archers shot thousands of arrows into the charging mass, but they could barely see well enough to be accurate. 100 ladders struck the front wall, and monstrous Zonian troops overwhelmed the front line. Vicious melee fighting broke out just behind the ditch and wall. Brienne stood wielding her sword and killing enemies as they attacked her. Bronn and Hassan were side by side, slaying so many that they had to keep moving to avoid the pile of dead enemy building up around them. The archers on the upper terrace and tree-kin walls couldn't chance hitting their own troops because the fighting was so close. All they and the gun corps could do was pick off stragglers still out in the field.
At the western end of the wall, the Westerosi were overrun. Nearly 400 Westerosi troops had died defending that spot, and they had taken over 1000 Zonian troops with them. A clot of Zonians surged up the slope towards the second terrace and were met with a wall of spear-wielding Westerosi troops. The spears cut the enemy down and drove them back, and a fresh group of Westerosi reinforcements charged down the slope, driving the Zonians back to the lower wall. As this wave of Zonians began to falter, another larger wave started from the forest, yelling bloodthirsty cheers. A screech from above broke their taunts and yells, and the front tree line where the Zonian troops were coming from ignited into flame.
Drogon and Jon had come to help with the defense. The Westerosi defenders cheered so loudly it drowned out all other sound. Then three large figures appeared, backlit by the flames of the dragons' making. It was impossible to make out the color of their robes in the darkness, but they began casting spells. Vicious lightning attacks searched for the dragons' flight path in the darkness. Jon wheeled Drogon from the field to avoid a death blow, and the battle was renewed. But the damage the dragon wrought on the enemy was immense, taking thousands of enemy lives and frightening their troops. One of the enemy mages turned and began dousing the burning forest with water spells, slowly pushing back the fires.
Two of the enemy mages moved forward on the field, stopping just short of the outside range of the big guns. Another big gun fired and pockmarked the ground about 20 feet in front of them. One of the Westerosi troops cut through the darkness with a shriek of pure terror. One of the mages was moving his hands in a spell formation, and a dead Zonian troop inside the walls sprang to undead life. Nearly a dozen more began moving and attacking anything near them. Nearby, a giant Zonian corpse came to life beside Brienne. Its axe swung with supernatural force. Brienne dodged the first blow and hacked at it with her sword. While her sword removed a limb, the thing kept coming. Its eyes glowed green at her, and she stumbled back in revulsion. She righted herself and swung at its neck with all her force. The thing had already swung at her side before she attacked, and the blow from its axe rent her armor on her torso, wounding her badly. However, her sword swing finished, and she removed the thing's head from its shoulders. It crumpled at her feet as she started to stagger. She shouted, "Take their heads!!!" She followed it with a call to retreat to the second terrace. Hassan and Bronn grabbed her and dragged her up to the second terrace as most of the Westerosi troops backpedaled there as well. Mages on the tree-kin wall began lobbing fire spells into the bodies and undead near the front wall.
The fire burned the undead and the corpses of Zonian and Westerosi alike. Healers pounced out to the wounded and began saving lives. Brienne's injuries were stabilized, but she was taken inside the tree-kin gates to recover. Several gruesome burning corpses animated and then fell apart as their physical bodies deteriorated beyond usability. When one would expire, another would rise outside the walls among the dead Zonian troops. They would stagger mindlessly toward the walls, and nothing short of burning or decapitation would stop them. Some fell into the ditch and were impaled on spikes, which halted their advance. The other forward mage began casting fire spells onto the second terrace, and the Westerosi were hard-pressed to keep the forward train walls from burning up. Water mages on the tree-kin walls cast water spells on as many fires as they could to protect the second tier wall.
Dawn came and turned the hellish nighttime battlefield into a lit nightmare of burning corpses and fire and lightning attacks. Hassan and Bronn gathered with various captains and tried to figure out a way to remove those mages from the field. The cavalry captain offered to do a suicide charge but was shot down for the loss of the needed cavalry. Hassan had one of his men step forward and offer a suicide attack by sand-kin assassins, but Hassan stopped him because he could see no way for them to reach the mages. A big gun captain was nearby, heard them discussing, and said, "I have an idea!"