The puzzle of its vanishing act continues to baffle investigators. Every hint seems to point an intentional vanishing. Speculations run rampant, ranging from alien involvement. The reality remains unknown. ??? ????? ?? ??? ??? ??? ?? ???. ?????? ???? ?? ??????, ???? ????. ?????? ?????, ???. ??? ????? ??? ??? ??? ??? ??? ??? ????? ????? .