Green Forest Hidden Alphabet

I never liked flattering leprechauns. They are insidious and do they have a very peculiar sense of humor. Now let's say they have dragged you into their forest and hid themselves insidiously giggling from under leaves and stones. They knocked us confused and say that will lead us from here only when we find them all the letters of the alphabet. And for us to be even worse, said that it must be done on time.