SOLVED. ? agent is assigned to close out a retired agents home office after he dies. he/she finds a hidden cache of info about supernatural goings on that leads her into a world she never knew existed. it ended with the promise of more books to come

[Mark]

read it in the last 5 years a new book then .

[Mark]

solved : guillermo del tore and chuch hogan The Hollow Ones

[Amber (Daisymau)]

The Hollow Ones for the link