Sword art online

"Kirito and Sinon's battle with Death Gun is over, but mere weeks later, something strange is afoot in the next-generation VRMMO ALFheim Online. A new duelist with a custom sword skill is defeating all comers--including Kirito! But when Asuna goes to face the duelist, she receives something she never expected: an invitation to an exclusive guild! But what is their aim? The Mother's Rosary arc begins!"--Back cover.