Found on a scrap of cloth pinned to the victim at the sawmill in Sandpoint:

“You will learn to love me, desire me in time as she did. Give yourself to the Pack and it shall all end.”

Spoken by Grayst at Habe's Sanatorium (just before he flew into a frenzy):

“He said. He said you would visit me. His Lordship. The one that unmade me said so. He has a place for you. A precious place. I’m so jealous. He has a message for you. He made me remember it. I hope I haven’t forgotten. The master wouldn’t approve if I forgot. Let me see… let… me… see…  He said that if you came to his Misgivings, that if you joined his pack, he would end his harvest in your honor.”

Found on a piece of parchment pinned to the victim at the Hambley farm:

“Take the fever into you, my love — it shall be but the first of my gifts to you.”

Finally, when the groups finds Aldern, he says:

“You! You’ve come to me! I knew my letters would sway your heart, my love! Let us consumate our… our… hunger!”