"AudioFile" magazine praised the audiobook. They said that the "[...]action-packed book (second in a series) will delight fans of Percy Jackson, the half-blood son of Poseidon, as Percy once again battles mythical monsters in modern-day settings while on his mission to save the tree that guards Camp Half-Blood." They also praised Bernstein, saying "[n]arrator Jesse Berns helps listeners slip right into the oddly engaging world that Riordan creates, in which contemporary (modern) teen characters and those from classical mythology intermingle (get mixed)." They mentioned that he could successfully portray teenagers, while keeping the pace fast. This allowed to enjoy the book's humor. The magazine "Publishers Weekly" praised Bernstein's "snappy (quick) delivery and all the right funny touches" that made the "action-packed fantasy such fun."