Choose Obliviate

"Sly choice...tome like that could be invaluable in the right hands. Sadly, Illusion isn't really my forte; not much use to me besides some mild confusion."

He chuckled softly at his unintentionally bad pun.

"I've also noticed you were interested in that old septim-dreadful" he added, nodding to the other book. "Got it off a Khajiit caravan near Whiterun. The old cat spouted some tale about someone winning it from a Daedric Prince in a drinking game or something. He was probably sampling his own skooma, if you ask me."

"Anyway", the Altmer continued, "50 septims and I'll give you both, though there's no guarantee or returns on that dog-eared mess. A rather generous offer, I'd say..."