k5 and k6 each concentrate on a mirror image. I assume they heard the dragon fly off? Fang will fly off the roof and and land at 5n50e. On the way just as he gets within tail slap reach, he will tail slap flyby attack (plus trip). After the tail slap he will of course provoke an AoO.
Fang stats: [sblock]
36 ranks in Concentration, Knowledge (arcana, dungeoneering, history & local), Listen, Search, Sense Motive, Spot, & Use Magic Device. Feats are Alertness, Cleave, Flyby Attack, Hover, Power Attack, Snatch, Weapon Focus (claw), Lightning Reflexes, Improved Natural Attack (bite & tail), Improved Toughness & Improved Maneuverability. Spells are (6/7/7/7/7/6/4):
0 level: Acid Splash, Daze, Detect Poison, Disrupt Undead, Flare, Mage Hand, Open/Close, Ray of Frost, Resistance
1st level: Feather Fall, Grease, Jump, Magic Missile, Silent Image
2nd level: Alter Self, Detect Thoughts, Mirror Image, Resist Energy, Whispering Wind
3rd level: Halt Undead, Magic Circle vs. Evil, Summon Monster III, Sleet Storm
4th level: Arcane Eye, Charm Monster, Dimension Door, Shadow Conjuration
5th level: Dominate Person, Hold Monster, Summon Monster V
6th level: Mass Suggestion, Otiluke's Freezing Sphere
It knows that Golgatha is a radiant dragon. It can breathe a line of force or a cone of blinding light, can dispel darkness and is immune to light effects, has a healing touch which can generate cure critical wounds, regenerate, remove blindness/deafness, remove disease, remove paralysis or restoration, has a better frightful presence and SR than yours, and has a DR equal to yours except part of it can only be overcome by evil. [/sblock]
Mod: [sblock] How injured is this Fang? Have you been applying fast healing? What's the chance of swapping out one of those useless 6th level spells for heal?[/sblock]