Fantasy novel by Rick Riordan, part of The Kane Chronicles series.

Second-hand copy of 'Heroes of Olympus: The Son of Neptune' by Rick Riordan.

A fantasy-adventure novel by Rick Riordan, part of the Heroes of Olympus series.

A second-hand paperback copy of 'The Throne of Fire' from The Kane Chronicles series by Rick Riordan.

Second installment in the Magnus Chase series by Rick Riordan.

A second-hand copy of 'The House of Hades', part of the 'Heroes of Olympus' series by Rick Riordan.

A fantasy novel by Rick Riordan featuring Magnus Chase in an adventure involving Norse mythology.

A secondhand copy of 'The Red Pyramid' from the Kane Chronicles series by Rick Riordan.

Heroes of Olympus: The Lost Hero by Rick Riordan

A second-hand copy of 'The Mark of Athena' from the Heroes of Olympus series by Rick Riordan. This book continues the adventures of demigods in the modern world.