put the number of lines in field "textarea" of card "Mountain Trail" into counter
repeat until counter = 0
get line counter of holder
if it contains "Travel upstream" then
delete line counter of field "textarea" of card "Mountain Trail"
put 1 into counter
end if
subtract 1 from counter
end repeat
visual effect dissolve
go to card "Mountain Trail"
end mouseUp
-- part contents for background part 1
----- text -----
Cross the bridge
-- part contents for background part 2
----- text -----
You cross over the rope bridge. It is surprisingly sturdy. Over a hill beyond the canyon, a fountain of water is gushing from the earth. This is the river's source. On the ground surrounding the pool of the fountain, you find hundreds of bones, feathers, and rotting carcasses. These are the stark remains of the great parrots that have come there over the centuries when they are old and ready to die. There are no live parrots here.