Possible Clues:

• Withdraws to safety
• Clears out part of the roof said to include area with copper, leads, aluminium, tin
• Rates showing 100% increase at some point for empties
• Clears out a cute vase damaged
• Clears out foolishly a cute vase
• Empties
• Looking back, group with precious metal near cellar clears out
• Leaves due to a threat
• Clears
• Withdraws, having established a university with hollow backing