Gustave has taken it upon himself to observe Marion and Sanglain following the death of the Princess and DT.   But KT thinks Gustave is in the city of Marquesas for other reasons. 
moving north after the 
end of the battle.
se mueven hacia el norte 
después del fin de la batalla.
se mueven hacia el norte 
después del fin de la batalla.
indo para o norte após o fim da batalha.