Where's the other gate?

I was sitting on the bottom stair of our house the other morning talking to Doug and Holly was standing on the step above me. Next thing I know, she's climbing the stairs. Ugh. Until that day, she would just sit at the bottom of the stairs and pat the bottom stair with her hands, but never attempted to climb them. Well, those days are history.

All the way up! She can climb to the top fairly quickly now. Anytime we let her down, she makes a beeline for the stairs. "Doug, where's the other gate?"