Set the day after the end of The Blood of Olympus, this book switches between the viewpoints of Calypso and Will Solace as a dark presence looms over Camp Half-Blood.
After the Giant War, Nico di Angelo struggles to find his place at Camp Half-Blood. Will Solace, the ever-cheerful son of Apollo, makes it his mission to help Nico heal, both physically and emotionally.
As they navigate through, an unexpected bond forms between them, one that neither the darkness nor light can break .