I mean Magic!. I bought this at KB toys on a whim knowing that G is getting more and more physical. This is not just a great rainy day toy but apparently great for visitors too!. Grandma Bev and Grandpa Frank were here and it was a hoot to see Marks mother down on the ground crawling through this tunnel over and over with G! This thing will get you in shape. It is worth more than $12.99... he hasn't tired of it yet and I know it will be part of future games and forts. I can't wait to get the mileage out of this.