before you go to orbone monnastory in chapter 4, if you go mining town of gollund you will have a qwest, beowolf will join to you party, if you finish that qwest, beowolf will give you a stone and he will join your party,, and you can give the stone in mustadio's father in clockwork city of goug, and the stone will put on the robot named construction 8,, constrution 8 was invented by mustadio's father,, and construction 8 will join your party!,, if construction 8 is joined in your party, go to mollunde, and go again to clockwork city of goug, there will be another qwest from mustadio's father,, so where should i find the stone for the another invention of mustadios's father called mostrosityfrom pieces of tunnel 83??

p.s sory for carabao english!