FBI Special Agent Claire King dies chasing a killer—and is resuscitated minutes later to realize she has changed. Dark images flash through her mind in a newfound power, visions leading her towards serial killers. But when a serial killer targets prison wardens, the list of suspects, in and out of prison, is long and deep, and Claire receives conflicting visions. Has her power met its match?

Once He Knows is Book #5 of a long anticipated new series by critically-acclaimed and #1 bestselling mystery and suspense author Molly Black, whose books have received over 2,000 five-star reviews and ratings.

FBI Special Agent Claire King has a reputation for brilliance, for being able to crack serial killer cases that no other agent can. Before she died and came back to life, she relied solely on this brilliance. But now that she has this fleeting, newfound power, Claire is confused: should she follow what she knows? Or what she senses? Are visions more powerful than intellect?

Or will they lead her right into a killer's trap?

A page-turning and harrowing crime thriller featuring a brilliant and tortured FBI agent, the Claire King series is a riveting mystery, packed with non-stop action, suspense, twists and turns, revelations, and driven by a breakneck pace that will keep you flipping pages late into the night. Fans of Rachel Caine, Teresa Driscoll and Robert Dugoni are sure to fall in love.