Just a Shadow in a cave .. What a cave? - you ask..
If you watched Sonic Boom in particular the last episodes of season 2 (in which the black hedgehog appears), then there is a moment where he is in a cave with inscriptions (although I changed them a little, in short, I built it for myself)
However, I haven't drawn Shadow the Hedgehog for a long time ..
Art by me
Shadow the Hedgehog belongs to SEGA
All rights reserved

https://www.deviantart.com/sfan12/art/Shadow-876900795