The Empyrean: Fourth Wing (Hardcover) $17 + Free Shipping w/ Walmart+ or on $35+

Walmart has The Empyrean: Fourth Wing (Hardcover) on sale for $16.99. Shipping is free w/ Walmart+ or on $35+
Amazon also has The Empyrean: Fourth Wing (Hardcover) on sale for $16.99. Shipping is free w/ Prime or on $35+