Island of Devils: A sequel to The Ravening

Two years ago, Dane Frost, a member of the shadow ops group UMBRA, barely survived an alien contagion known as the Ravening. After the sudden death of UMBRA's director, Frost is temporarily placed in charge, knowing that another government agency will soon take over.
But when Frost receives potential intel about The Collective's hidden island location somewhere off the coast of Brazil, he goes rogue. The Collective has spread its sinuous tendrils throughout the United States for several deca...