I have made a normal version of the dairy staff, also completed the ordinary level rainbow levels, at present the nightmare difficulty level just customs clearance, but in the fourth chapter fortress quartermaster there or not sell the nightmare difficulty level of the dairy staff drawings, hope tall person to give directions

Answer:

The nightmare in nightmare is level should be the source of the city after it ~ in next to fill after the nightmare before they are the source of the sell potions.

Select-the source of nightmare, you will find that can buy!