found an earth book in nearby t-zone, guarded by 80+ droids. which could take easily after few hives.
Theorodus got all needed skills, like loga, intelligence, earth, and air at the end. also had earth orb, +3 speed. so decided to push.
by view earth found a short way to go towards opponent's main town. which could reach on 127 and we had finalka. opponent halfed my army with chain lighting, but own army was pretty small, so at the end Gurnisson needed to retreat via escape tunnel.
at 132 scouted and took air book on opponent territory.
after that Norbak surrendered.
TFP!