ÊÀÊ ÑÊÂÎÇÜ ÇÅÌËÞ ÏÐÎÂÀËÈËÑß
[kak skvoz' z'eml'u provalils'a]
As if someone or something has fallen through the ground.
Someone or something has suddenly and unexpectedly disappeared in a mysterious manner, without a trace.
Cf. To vanish into thin air; as though the earth had opened and swallowed it up.