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 "After the pachederm" 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 card "River Trail"
end mouseUp
-- part contents for background part 1
----- text -----
Tracking the bull elephant
-- part contents for background part 2
----- text -----
You have followed the powerful beast down into the river valley. It is taking a long time for the tranquillizer to take effect. When you finally track down the bull, you find him passed out under a binyon tree by the river. "What a catch for the Pittsburg Zoo!," you exclaim gleefully.