What is maria's advice to bruno after their talk?

Maria gives some advice to Bruno to 'keep safe' by telling him to 'Just keep quite about it, Bruno. Don't you know how much trouble you could cause'. This shows that Maria wants the best for Bruno and that she wants him to be safe as seen through the fact that she, who is meant to be there 'slave', is giving him advice. I think that it is good advice for Bruno because it shows that he needs to be good and it is a good foundation for principals about respecting elders and there decisions.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.