Ricochet: A la poursuite du Comte courant

Ricochet is a solo or coop game, including a serie of riddle to solve, associating ideas.
The 30 riddles are linked in a crazy secret agents story: everytime, you have to find the last sentence of a dialog.
To find the missing sentence, the player must hide 20 to 22 words from a grid containing 25 words. The remaining, read in the rignt order and out loud give a hearing rebus wich is the dialog last sentence.