more books by matt chatelain the sirenne saga is matt chatelain 's first series 1 ) the caves of etretat , published dec 2011 2 ) the four books of etretat , published may 2012 3 ) the one book of etretat , published : august 2012 4 ) the greyman , published oct 2012 new release the vostok juncture , published jan 2014 upcoming novel : weissmuller 's vacation , anticipated release date jan 2015 check his website www.mattchatelain.com for more about his latest projects .