# Is "The Tower of Nero (Trials of Apollo 5)" by Rick Riordan a First Edition?

> **Quick answer.** A first edition of The Tower of Nero (Trials of Apollo 5) by Rick Riordan (Disney-Hyperion, 2020) is identified by: First-printing trade hardcover identified by a complete number line ending in 1 on the copyright page; Disney-Hyperion, 2020; first-state dust jacket present. US first, published October 6, 2020.

**Checklist — a true first has these:**
- First-printing trade hardcover identified by a complete number line ending in 1 on the copyright page
- Disney-Hyperion, 2020; first-state dust jacket present
- Disney-Hyperion relies on the number line rather than a stated 'First Edition.'
- Publisher imprint reads Disney-Hyperion
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Rick Riordan |
| Publisher | Disney-Hyperion |
| Year | 2020 |
| True first | US edition |
| Format | Children's / illustrated |
| Key point | First-printing trade hardcover identified by a complete number line ending in 1 on the… |
| Book-club edition exists? | — |

## Points of issue
First-printing trade hardcover identified by a complete number line ending in 1 on the copyright page; Disney-Hyperion, 2020; first-state dust jacket present. Disney-Hyperion relies on the number line rather than a stated 'First Edition.'

## Is this the true first?
US first, published October 6, 2020. Disney-Hyperion issued the true first trade hardcover; concludes the Trials of Apollo series.

## Telling it from reprints & book-club editions
Later printings advance or drop the number line so it no longer ends in 1.

## Source
New Mexico Literacy Project — Is *The Tower of Nero (Trials of Apollo 5)* by Rick Riordan a first edition? https://newmexicoliteracyproject.org/first-edition/the-tower-of-nero-trials-of-apollo-5
CC BY 4.0. Part of the Canonical First-Edition Points of Issue dataset (https://newmexicoliteracyproject.org/api/first-edition-titles.json). Last reviewed 2026-07-03.