Final answer:
In the novel 'The Secret Agent' by Joseph Conrad, Rukmani and Nathan keep their savings safe by burying them in the ground.
Step-by-step explanation:
In the novel 'The Secret Agent' by Joseph Conrad, Rukmani and Nathan keep their savings safe by burying them in the ground. This is a common practice in their village as it provides a secure and hidden location for their money. By burying their savings, they can protect them from theft or other risks.