Oh I remember this. There was also a series on either Nat Geo or History that had something similar to this. Crystal caverns or something. You know what's crazy about these things? You can only remain inside one for like anywhere from a half to a full hour before you run out of oxygen!
" Oh I remember this. There was also a series on either Nat Geo or History that had something similar to this. Crystal caverns or something. You know what's crazy about these things? You can only remain inside one for like anywhere from a half to a full hour before you run out of oxygen! "
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