The wall of earth beings hardening to the point of it looking like shiny brown stone. (*dc 10+ 2hardness plus +5 hp an additonal +2 hardness for each 5 I beat it by so with an automatic 42, I get a total of hardness:11, hp: 36)
Then you hear a rumbling as if large amounts of earth are being moved.
Excavate at a rate of 5 foot per second, voluntarily taking the fall reduces it to negative 15 foot fall no damage.)