The "Russian Lady" tells Jack at the end of "Hosts" that "a spear has no branches". He remembers having heard that before. Who told him that before, and in what book?

Earlier in "Hosts" Jack and Kate are approached by a would-be mugger, who utters the phrase.

Thank you, I remember now. The one who seemed like he was in a trance.

I don't remember that. That's really creepy!

Ah, great scene. A fool flashes a knife, Jack flashes firepower (riffing here, don't have the book with me), "This isn't going down the way you thought it would, pal." "What happened back there, Jack?" "Nothing, Kate. Just a guy asking the way to Bull McCabe's Irish Pub to meet Bluesman Mike." "Bluesman Mike is =real=, Jack? I thought he was just a character in Winslow's books." "Oh, Mike is real, Kate. Just as real as you and me."