How Old Are The Riordanverse Characters In 'Heroes Of Olympus'?

In the Heroes of Olympus series, the main characters are all different ages. Percy and Annabeth are 16-17 years old, which for demigod kids is pretty old. Jason is 16 and has the rigidity of a Roman son. Piper and Leo are 15, so very young for this kind of story. Piper is trying to find herself, while Leo is making up miracles as he goes along. Frank is 16 and then 17 in the space of a few chapters, and was given a spooky lifeline by Pluto. Hazel is 13 but was reborn at 15 and so has the old soul of a 100-year old. Nico is 80+ years old trapped in a 14-year-old body and is completely fed up with everyone. All of their ages are significant in different ways. Leo's youth makes his sacrifices even more tragic, and Hazel's second life as a daughter of Pluto adds another layer to her bravery. Even the gods treat the characters like children, which is often very funny. I never actually noticed how age was being used by Riordan until I thought about it, and it's actually a secret weapon - every birthday is a ticking time bomb.

One thing that is pretty clear when looking back at the Heroes of Olympus series is the age of the main characters for most of the books. Percy Jackson is 16 at the beginning of The Last Olympian and 17 by the end of The Blood of Olympus. Annabeth is the same age as Percy for the whole series. Jason Grace is also 16 for most of the Heroes series. Piper is 15 for most of the books, and is Cherokee for her mother’s side and is a daughter of Aphrodite. Leo Valdes is also 15 for most of the series. He is a son of Hercules and has alot of power and is very funny but has a lot of pain in his past. Frank Zhang is 16 at the beginning of the series and is 17 by the end. Because of being made half by magic a piece of wood, he has a limited life-span. Hazel Levesque is technically 13 for most of the series but because of time traveling she is physically 15 for most of the books. Nico di Angelo is 80 something years old for his real age but is physically 14 for the whole series and is goth.

It’s also really cool how each of their ages shapes their experiences and development. Percy is kind of on the cusp of being an adult, dealing with the burden of leadership. Leo is worried about how he’s handled his time with Calypso and his feelings of guilt, while the ‘old soul’ of Hazel struggles to come to terms with the second chance at life she’s been given. And Nico is simply a 14-year-old boy who has dealt with the pain of centuries in that body of his. Rick Riordan was able to really illustrate the hard work and frustration of adolescence, even when the characters are fighting giants. And, Coach Hedge is this thousands of years old character who is, for all intents and purposes, a gruff but lovable PE coach type of guy.

It's clear that demigod ages in 'The Heroes of Olympus' were strategically chosen by Riordan. Most of his demigods are 15-17 years old which means that they have gained enough experience and power with celestial bronze to fight in wars but are still very young and often make reckless heart-centered decisions. For example, although Percy is nearly an adult, he is old enough to reference his time in Tartarus, as well as say that he has been to the very end of life and back. Similarly, Jason is nearly an adult as well and is shown to be very worn out from all of his adventures. However, there are some notable exceptions to this general rule. For example, although Piper is 15, she is trying to figure out herself and to be accepted by her peers who have stereotypical expectations of her. Leo is also 15 and uses his humor in order to mask his loneliness. However, Frank's 16-to-17 year old years were spent struggling with his family's curse and growing up very quickly.

This relates to how the demigods age in ‘The Heroes of Olympus’. By making the Near-adult demigods, near on 15-17 years old, they can still fight with celestial bronze but also act with heart first, often leading to some poor decisions. The near-adult demigods have authority and look old and tired but still very young. Percy looks old for his age while Jason sounds like an old man by saying ‘I died once’. The slightly younger Piper and Leo are still figuring out who they are. Piper struggles with stereotypes while trying to find herself and Leo uses his humor to protect himself from his loneliness.