What is the main conflict in The Valley of Horses: A Novel by Jean M. Auel?

When a cave lion Ayla befriended attacks Jondalar and Thonolan, Ayla is able to save Jondalar and nurse him back to health. With Jondalar, Ayla begins to learn about the people from whom she came and to discover the excitement of new love. The Valley of Horses continues Ayla's story in a new and exciting direction that brings Ayla acceptance of herself and a chance at love.