Amazon America currently has LEGO Marvel Super Heroes Malibu Mansion Attack on sale for $21.63 (reg.$39.99). Savings work out to be 46% off. Act fast as this deal most likely won’t last long. Another great deal is LEGO Creator Red Rotors Helicopter set for $8.39 (reg.$14.99). Savings work out to be 44% off.
Thanks to forum member grymg for the tip.