"Well according to the maps, the Grail cavern should lie...
"Ewww... but it looks all dark and creepy. I wish MiskatonicNick was here!"
"Mary-Kate! Wash your mouth out with soap!"
"No, Ashley... I meant so we could send him on ahead to be bitten by all the snakes and spiders and creepy crawlies in there!"
... somewhere in there..."
"Yes... it's us...erm, it's them, Ashley; the information we beat out of the Joneses was right - we've been able to intercept the Grail Hunters. But MiskatonicNick isn't with them."
"That makes things all the more easier then...
... we kill those Olsens... take their place... wait for MiskatonicNick to come along and then, when he guides us to the Grail..."
"... we kill him as well... giggle!"
"Now, which twin should I shoot first with this 'Never-a-miss' assassin rifle?" giggle