|Not part of Riordanverse|
Lamassuare guardian spirits that resemble big cats with feather covered wings.
Ishtar keeps multiple Lamassu at her house. When Nergal came to demand Sikander Aziz come with him, they transform into their true selves to defend the body from the Plague God. They later transport Sik and his companions to Manhattan General Hospital after they find a cure.
|City of the Plague God|
|Books:||City of the Plague God|
|Main Characters:||Sikander Aziz | Gilgamesh | Belet Amari | Mohammed Aziz | Daoud|
|Secondary Characters:||Kasusu | Sidana | Idiptu | Mr. Aziz | Mina Aziz | Sargon|
|Minor Characters:||Tirid | Ada | Humbaba | Zack | Hobbs | Clyde | Mr. Georiou | Bagheera | Shere Khan | Simba | Achilles | Florence | Saghulhaza | Mr. Khan | Farouk Khan | Ada | Duncan | Charlie Yen | Jake | Mr. Grant | Brian Walker | Helen of Troy|
|Mesopotamian Gods:||Nergal | Ishtar | Erishkigal|
|Magical Creatures:||Asakku | Lamassu | Ugallu | Poxie | Basmu Serpent | Humbaba|
|Related Content:||Sarwat Chadda | Rick Riordan Presents|