Let’s just get this out of the way now: We don’t know the exact birthdays of many of our favorite demigods. Especially when it comes to the demigods who were born in the early 20th century and still look like teenagers. Not only are we unclear about the month Nico was born, we’re also a bit unclear about the year!

What we do know is that 2023 will be the first year that Nico will be starring in a book of his own (The Sun and the Star, on sale 5/2! ), which is kind of the same thing as a birthday if you believe hard enough!

Whether he was born in January in the 1920s or May in the 1930s, or at some other point in time, we’re still going to share some of the birthday wishes sent to us directly from Nico’s closest friends and family:

Percy Jackson:

“Happy birthday, Nico! I know we’ve had our differences in the past, but your courage and tenacity have always been an inspiration to me. Even back when we didn’t get along, I would always think, ‘This kid’s a total brat, but I can’t deny that he’s got guts.’”

Piper McLean:

“I hope you have a wonderful birthday, Nico. And I can’t wait to celebrate with you. I know that if Jason were still with us, he would tell you how proud he is of the person you’ve become. And he’d maybe also remind you that you’re overdue for a new haircut.”

Frank Zhang:

“A very happy birthday to the only demigod I know who can hold their own against me in a game of Mythomagic. Remember to bring your new deck next time you visit Jupiter!”

Hazel Levesque:

“Who would have thought that when we were kids in the ‘30s that we would still be teenagers nearly a century later? I guess it really does take forever to grow up! Learning how to live in the present hasn’t always been easy, but I’m thankful you’ve always been there to help me adjust. Even if I’ll never forgive you for introducing me to the horrors of ‘the weird parts of the Internet.’”

Will Solace:

“Wishing you the happiest of birthdays, babe! I can’t think of anyone else I would rather venture into Tartarus than you. Speaking of: is there any possibility that we can wait a few weeks (or months) before we go? At least let me take you to Disney World first. I know you’ve always wanted to go to the Haunted Mansion!”

Hades:

“Enjoy your birthday, son. Maybe, if you’re not otherwise occupied, you would like to venture down into the Underworld this weekend and spend some time with your father? Perhaps Persephone and I will even bake a cake for you. Perhaps.”

Persephone:

“Pay no mind to your father, Nico. Of course, we would both love to see you soon, even if he won’t say the words directly. And so would the hellhounds, of course. So, please consider this an invitation to visit. I promise that, this time, your cake will only be made from the freshest of ingredients.”

(The Ghost of) Bianca di Angelo:

“I hope you have the happiest birthday in the universe, Nico! I wish I could be there to celebrate with you properly! But I know that one day we’ll be reunited. . . Uh, not that I’m hoping you die anytime soon . . . What I’m trying to say is, even after you live to be 100 years old, I’ll still be here waiting for you on the other side.”

Percy Jackson, again:

“Wow, those messages were really heartfelt. Now I feel kind of bad about what I said. Would it be possible to leave out the part where I called him a brat?”

Do you have any special birthday wishes for Nico? Be sure to let us know!