Raziel?

Grim the Hellhound was in the next room wrestling with Beezlebub. Grim the puppy had jumped into River's arms. Crowley exhaled as he led River into an office. He was hiding out in the suburbs in a one story house.
"So I assume you're here for the sake of Sammy boy?"
"I'm to late to save Lilith..." River read the remorse clearly in his mind, "I'm sorry."

He tensed for a moment.
"So this time around you read minds."
"What does the hat mean?" River asked. Crowley chuckled as he pulled his hat on.
"You gave it to me. On the new frontier back when it was new."
"Pardon?" River's mind raced. That was a name for space, right?
"When humans started to settle the west." Crowley glanced at her. "What did the other me send you with other then Grim and the hat?"

River dumped the contents of her bag on a desk and Crowley raised an eyebrow.
"Ruby's knife and an Angelic Blade I get. But an E-Reader?"
"Cas said something about the Gospel of Winchester."
"Jesus H. Christ." Crowley moved to charge it. "What sort of future has me working with him...?"
"How do I free Sam?" River asked. Crowley froze and faced her.
"So Paula and Serenity didn't send you with a plan. They just shipped you."
"And Wash, you, and Castiel."
"Bloody Hell. No offense, but you look fragile."
"I can fight." River stated as she crossed her arms.
"Not saying you can't lass."
"It's what you were thinking."
"How did you-don't answer that. Telepathic again."
"Among other things."
"Such as?" Crowley leaned back in his seat. River grinned for a moment.
"I can kill with my brain."