Actually you defiantly can find them. They're North East of Gleeba. On your map there should be a small brown patch & if you walk over to it they're near an abandoned well.
you can make them 3x brighten rocks 3xevencloth
you find the brighten rocks by killing mobs in the desert like area were thier are lvl 30 or you can find them.
You can find them at NW in a black spot at gleeba near the light bridge at wormwood.
He is the boss at Zere Rocks, which can be found at the top of the Heights of Lonliness, east of Bloomingdale.
You can't but you can make one @ dragon quest monsters.com
you can find treasure maps by doing quests for people ex: quest for colmpus on zere rocks and you get the treasure map tunnel of woe boss is equinox suggested lv 30 or higher
gittinghampalace
oaklore dragon defend oaklore quest
nythrea's first quest you'll find it on that one
U have to fight him in warlic's quest(dragon egg)
In Dragonfable you can find the mummy dragon in a quest called Dynasty Tomb in the Sandsea from Zhoom.
Go to below link and go to non-member quest and find dragon slayer quest. It is a good guide with screenshots.