 They eventually manage to do so, at the price of Glock's life and the Plumes give them the mouthpiece of the Pirran Pipe in return.The Plumes originally believed that The Fear was a monster that was bred by the Aurons to terrorize them although later on this was proven to be untrue.Derived from arachnid, the Arach are giant Spider-like creatures who appear in the second book of the Deltora Shadowlands series