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. 
who knows what Variation 
will say to us.
quién sabe qué nos va a decir Variation.
quién sabe lo que pensará Variation.
vai saber o que Variation falará para nós.