Crystal Skull Location and UNKNOWN SECRET at Serpent Mound in Red Dead Redemption 2!

Red Dead Redemption 2 - The secret of the sun at Serpent Mound and the mysterious Crystal Skulls! Like and Subscribe! New RDR 2 Videos and Livestreams Everyday :) Joe Rogan Full Interview - https://www.youtube.com/watch?v=X2utCTvqlVI&t=313s Mystery Update - https://www.youtube.com/watch?v=MdOwKOM10Wc Hidden Cave with Gold - https://www.youtube.com/watch?v=FjYqYetRCGc Arthur Morgan Grave - https://www.youtube.com/watch?v=B1sYR5jvVmQ&t=69s RDR2 Walkthrough - https://www.youtube.com/watch?v=pT2pXm