In an electrifying conclusion to the Fever series, 'Shadowfever' thrusts protagonist MacKayla Lane into the epicenter of a world-altering confrontation. After the cliff-hanging events of 'Dreamfever,' Mac finds herself torn between desire and duty as the veil between the fae and human worlds crumbles. With the lethal Sinsar Dubh at play, a book fraught with dark magic that holds the power to shape or shatter worlds, Mac is hunted by forces beyond comprehension. Facing loss and betrayal, she must grapple with her heritage and the murky truth of her existence. From the opulent heights of hidden power to the seedy underbelly of nightmarish realms, Mac's journey is a trial by fear and fire that will require her to make the ultimate choice—one that could save humanity or condemn it to ruin.