Complex sentence: Their journey inside the Berg takes them near Asheville, where they find Lana, who was badly tortured by the infected, forcing Alec to kill her using the Transvice to end her suffering.
Split into simpler sentences: Their journey inside the Berg takes them near Asheville, where they find Lana. Lana was badly tortured by the infected, forcing Alec to kill her using the Transvice to end her suffering.