Answer:
for protection
Step-by-step explanation:
ur question is from the book "The Oasis"
About the book;
Quick Info. - McCarthy describes this, her second novel, as a "conte philosophique". It tells the story of a group of embattled intellectuals, their quest to establish a Utopian community in the mountains of New England, and their failure to surmount ideological and personal differences for the greater good of the commune.
Summary;
Their camp wiped away, Alif and the others find themselves lost on the sands, seemingly doomed ... until they find the oasis. It has everything they need: food, water, and shade―and mysterious ruins that hide a deadly secret. As reality begins to shift around them, they question what's real and what's a mirage.