Final answer:
In 'Great Expectations', Pip likely creates a plausible backstory to explain Magwitch's presence in his rooms to protect their identities, though the novel does not detail the exact explanation given.
Step-by-step explanation:
In Great Expectations, after the convict Magwitch comes to stay with Pip, Pip is compelled to explain the presence of an old man in his rooms.
The narrative does not provide an explicit dialogue for how Pip manages this explanation, but it can be inferred from the novel that Pip would have likely concocted a plausible backstory for Magwitch in order to protect both of their identities.
Given the social norms and potential legal repercussions of the time, it would have been essential for Pip to provide an account that would not arouse suspicion among his acquaintances and the community.