Awesome. Though, ya know, I think I'd not build this with stairs, I'd build it with an enclosed slide that seals shut with a metal door at the bottom. This way once your whole family gets down there, you can seal it up just in case your hideout is found.
15 Secret Hiding Places That Will Fool Even the Smartest Burglar
Secret door... to a secret lab. with "schematics"... I don't know what schematics are but I want them... and a trap door. Leading into a marsh... of marshmallows... Could anyone really be mad at you for dumping you into a marsh of marshmallows?- Dane Cook
Five Secrets Revealed BY CONSTANCE ROSENBLUM In New York City, houses and apartment buildings typically conceal their private sides when you are introduced to them. But tap the walls or peer into the back of a closet, and who knows what you might find? A hidden staircase, a secret passageway, or walls that pivot could lead to unknown territory. Here are five homes in which all is not what it seems.