The Heroes of Olympus symbol is an Omega. The Omega is the last letter of the Greek alphabet.
The Last
Does this mean we'll never have another book series revolving around Percy, Annabeth, Jason, Piper, Leo, Frank, and Hazel's adventures????
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![](https://img.wattpad.com/cover/67886935-288-k789562.jpg)
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100 Things only a PJO and HOO fan will understand
FanfictionBasically what the title says pjo and hoo belong to Rick Riordan