1:09:18
Exactly 30 minutes. Every half hour
we flip it upside-down, make a mark,
1:09:21
this way we can tell the time
and be safe.
1:09:25
Super!
1:10:47
The block is about three feet wide.
1:10:50
We'll have to dig a 10-foot tunnel.
Let's set up the boards.
1:10:56
Let's have them.