Yes I have done both. But it seems Miles cannot interact with the Oracle. I think it might be a glitch or maybe my PC is not compatible (it's a Lenovo Windows 10).
The Quest also in the Quest Menu is marked as "X Missing Child". I know I'm supposed to somehow interact with the Oracle which has a cut scene of her being viewed by Miles as I've watched a walkthrough video of the quest on YouTube posted by a dude speaking in Russian I think.
Please if you have time, could u post a video walkthrough of the quest in English on YouTube as well coz I really love the game and the storyline and would like to progress further.