In some cases, it's okay. For example "We use please to be more polite.", "I ask you please to give your support" (here it is used to indicate what the please refers to.) or after a comma "Help me, please, to do this task." Otherwise it's generally considered a bit old-timey and outdated for casual use. In general, "Please to do" or "Please to [verb]" sounds like broken English, while "Please do" is basically just referencing something previously stated that you would like to politely encourage some one to do. Ex. "May I have some cake?" "Please do!"

Bramwell is right. You should ignore it. It must be a very old story. It means ''please be so kind as to tell me.." or something. You can see old language like that in Sherlock Holmes (more than 100 years ago), or older books, such as 'I would speak with him' (would = desire to). Actually, if a native speaker says it, it's funny, but if a foreigner does, people think it's a mistake, ha ha! :)

This is an old usage, that doesn't really form part of the contemporary language, I suspect that the book that you have got this sentence from is probably at least a hundred years old, probably more, or is at least set in a period that long ago. You can safely ignore it, you will not have to use it and it seems a bit strange to modern ears, but would not have done to a Victorian.

I agree with Aiden Yu Martin. I will add that in English the structure is "please" + [conjugated verb]. That is, if you want to ask someone to do something, you might say "please" and then conjugate the verb to a command for "you" such as "please come with me" or "please be quiet". In English, the verb form with "to" such as "to eat" is the infinitive, and that is not correct here. In the examples of "please to" given by Aiden Yu Martin, the words "please" and "to" form different parts of the sentence. They are not related.

Yes，it‘s from the German playwright Friedrich Schiller.That's so long ago.Thank you for all your answers!