Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Percy anopiwa basa rokutsvaka bharuti iroro hondo isati yatanga. Anosarudza Annabeth naGrover kuti vaende naye kunotsvaka umambo hwaHadhesi, muiti wezvakaipa anobvira zvikuru. Asati aenda, Percy anopiwa bakatwa remashiripiti raChiron Anaklusmos ("Riptide") uye shangu dzinobhururuka dzaLuke. Vatatu vacho vanobva vaenda kuLos Angeles, kunopinda muumambo hwaHadhesi. Vari munzira, vanorwiswa neFuries, Medusa, Echidna neChimera, uye zvimwe zvikara zvinoverengeka. Vanoitirawo mwari Ares mutsa, uyo anovapa bhegi rizere nezvinhu zvokufambisa kuenda kuNevada. Zvishoma nezvishoma Percy anodzidza zvakawanda pamusoro peshamwari dzake, masimba ake, uye nyika yavanamwari vechiGiriki. Pavanosvika muumambo hwaHadhesi, Grover anenge achingodhonzwa muTartarus neshangu dzinobhururuka dzaPercy. Boka rakakuvadzwa pakupedzisira rinosangana naHadhesi, uyo anoratidza kuti Helm yake yeRima yakabiwawo. Hadhesi anopomera Percy kuba ngowani yake uye anotyisidzira kuuraya Sally Jackson (uyo ave ari nhapwa yamwari nguva yose) uye kumutsidzira vakafa kunze kwekunge yadzoserwa. Apo Percy anowana bhaudhi guru rakashaikwa mukati mekabhegi raAres, boka rinoziva kuti rakashandiswa. Achipukunyuka zvishoma muUnderworld, Percy anodenha Ares kuti arwisane naye. Apo mwari-hafu anokunda, anopa Helm of Darkness kuFuries; apo Hadhesi anozoona kuti Percy akanga asiri mbavha, anodzosera Mai Jackson kuimba yavo muNew York.  Mubvunzo: Grover ari kudhonzwa nei?
Shangu dzaPercy dzinobhururuka