5th Quest: Mother of the Dragonriders (Ruby, the armorer)

Task

I always thought lighting and dragons were a bad mix. This is especially
true when the lighting is spewing out of the dragon's mouth. Obviously we must
do something to enforce the shield against such an attack. However, this poses
a problem. The only creature I know that fits this species of dragon is the
mother of the great "Dragonriders". Do not take this task lightly, her
ferocity is unmatched by most of the denizens of land. Good luck my friend.

Walkthrough

(from Samsera center)
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kill shade and get the key to palanthas from his corpse OR pick portcullis
w3n4w5n
n on dragon