Amazon has the 18.8oz General Mills Count Chocula Breakfast Cereal with Monster Marshmallows on sale for $3.28 - 5% off with Subscribe & Save (can cancel at any time) = $3.12 with free shipping on $35+ or with Prime.

• 16oz Boo Berry Cereal with Monster Marshmallows for $3.12
• 3-Pack 18.8oz Count Chocula Breakfast Cereal for $9.84