The Squirm and the Knife

Description from Noisetrade:

ANYA SOBCZEK (SUB-CHECK) is a snarling science major with an arm full of Darwin tattoos. Her brother OWEN is a sensitive young thing in a coven of teenage occultists. The Sobczek sibs have always been brutally competitive, but now that Owen's blood has started BUBBLING with ancient tentacled abominations, their rivalry's about to enter a vast new dimension of cosmic terror...

My thoughts:

This was cool. I got to watch as a hyped up college student went around making accusations about people's role in her brothers black arm thing. Is the black thing real? Or is the girl cray-cray?

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http://books.noisetrade.com/aaronalexovich/eldritch-1