Well here's the script:
Movements.xml
<movevent type="StepIn" actionid="10201" event="script" value="PitsOfInferno/MagicWallEntrance.lua" />
MagicWallEntrance.lua
local position = {x=920, y=545, z=8}
local position2 = {x=912, y=525, z=8}
function onStepIn(cid, item, pos)
if...