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. 
DT and the princess if 
they're still alive.
DT y la princesa si siguen con vida.
DT y la princesa si siguen con vida.
DT e a princesa, se eles
ainda estiverem vivos.