I recommend Stephen Baxter's "Saddlepoint: Roughneck", a novella in three parts, titled "Moon Rain", "Dreams of Rock and Stillness", "The Tunnel Into the Moon".

I recommend Stephen Baxter's "Saddlepoint: Roughneck", a novella in three parts, titled "Moon Rain", "Dreams of Rock and Stillness", "The Tunnel Into the Moon". http://www.isfdb.org/cgi-bin/title.cgi?81868 http://www.isfdb.org/cgi-bin/title.cgi?81868 Summary: Frank Paulis drills a large shaft into the center of the Moon in search of water and succeeds. http://www.sfsite.com/vault/dave36.htm http://www.sfsite.com/vault/dave36.htm