The Dink Network

I've attached a script to a potion in dinkedit. It's script doesn't work, let alone the actual item script. this is the potion script:

void main(void)
{
int &crap = free_magic()
}
void touch(void)
{
if (&crap > 0)
{
add_magic(itm-ptn, 438, 5)
say("`4How strange. I wonder what this is.", 1)
sp_active(&current_sprite, 0)
}
}
please alert me whether it is the engine(doubtfully) or my script