I feel your pain. I lost Lydia in the cave in the dwarven ruin city (Can't remember what it was called ). I searched for her for an hour straight, but never found her
I like to tgm ('toggle god-mode') and ragdoll my way down that thing. Surprises the hell out of the folks at Ivarstead.
I ride him off cliffs all the time and recently on my archer he became public enemy number one in falkreath I can't take him there without the entire town attacking him
Shadowmir is a horse. Never thought I would see the day when a horse became public enemy number one xD