Is The Heroes of Olympus the best Riordanverse series?

#percyjackson #rickriordan #heroesofolympus
All cover art is by John Rocco, thumbnail image of The Seven Half Bloods is by Yori Narpati, all other art is by the artist specified
The Lost Hero Graphic Novel: Rick Riordan, Adapted by Robert Venditti, Art by Nate Powell, Colour by Orpheus Collar
The Son of Neptune Graphic Novel: Rick Riordan, Adapted by Robert Venditti, Art by Antoine Dode, Colour by Orpheus Collar
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• ♩♫ Epic and Dramatic T...