The Prisoner of Parison

The third novel in my fantasy trilogy the Rombuli Saga : The Prison Of Parison by Eddie Gubbins.

Edward and his friends had gone. Now all that was left was for the army to retreat back to the Alskar River. Grand Master Silker the commander of the army had said," We do not have enough trained soldiers to do anything about a direct attack on the enemy. With odds of twelve to one, we can do nothing to ultimately stop their advance. All we can do is hope that the magicians Nelvask and Latask can hold them up with their power at the Alskar River. The other thing we can do is leave some people behind their lines to harass their backs and hit their supply lines with mind communicators to supply us with intelligence. I have to admit it is not much of a strategy but it is the only one I can com up with at such short notice. Desperate times call for desperate measures. I know it is really only a delaying tactic, hoping that something better will turn up. I can see little hope of it succeeding."
All the allies deep down know that the strategy is suicidal. They reason that it is all that can be done until somebody leads a group to Parison to rescue  the prisoner Tulka. He is the leader of the magician's faction called the Covenent but has been imprisoned by the Black elves.
With his powerful magic, the remnants of the Covenent, Edward Eastland and Nelvask there might be a chance of confronting the Black Elves and their magic. The only problem is they have to find Edward Eastland who has disappeared.
The Elves of the Golden City stir in their forest hideaway on hearing that their banished enemies the Black Elves have returned. Edward Eastland had confronted their attitude to the outside world when he had been taken to the Golden City. They reluctantly agree among themselves to help the humans in their fight with the Black Elves.
Will there need to be a frontal attack on Parison or would they be best to undertake a clandestine mission?
The situation is desperate but where is Edward Eastland the most powerful human magician? The enemy appears to have much stronger magic and a larger army.
Will Nelvask find Edward Eastland in time for him to help in rescuing Tulka? Will the King of the Elves of the Golden City make the King's Call to summon the legendary dragons to his aid?
Old enmities have to be submerged in order to fight a greater evil but will old grudges come to the surface and hinder the mission to stop the Black Elves?

This novel explores the need at times to put previous differences aside if confronted with a greater evil. There re many situations in the world at present where this principle applies.