Subject(s): Jackson, Percy -- (Fictitious character) -- Juvenile fiction. | Hecate -- (Greek deity) -- Juvenile fiction. | High school students -- Juvenile fiction. | Pet sitting -- Juvenile fiction. | Pets -- Juvenile fiction. | Mythology, Greek -- Juvenile fiction. | Goddesses, Greek -- Juvenile fiction. | Gods, Greek -- Juvenile fiction. | High school students -- Fiction. | Fantasy. | Adventure and adventurers -- Fiction. | Juvenile Fiction -- Fantasy & Magic | Juvenile Fiction -- Legends, Myths, Fables -- Greek & Roman | Juvenile Fiction -- Action & Adventure -- General | Young adult fiction. | Mythological fiction. | Fantasy fiction. | Action and adventure fiction. | Novels. | Romans.