I want to know the answer to the following question:
What is one thing he wrote during this time?
All the background I'm provided with is that "Athanasius, after remaining some days in the neighbourhood of the city, finally withdrew into the desert of Upper Egypt, where he remained for a period of six years, living the life of the monks, devoting himself to the composition of a group of writings; "Apology to Constantius", the "Apology for his Flight", the "Letter to the Monks", and the "History of the Arians".". Is that enough to answer the question?
Answer: yes