Can I get a little 粉丝 fiction help...?

I've been dying to write a PJO chaptered fanfic for ages but I can't 猛男, hunk, 大块 of anything! So, could 你 guys give me a prompt, like a little nudge? It could be:
first lines
pictures
brief ideas
fill-in-the-blanks
whatifs
quest ideas
或者 anything else 你 can think of!
I won't exactly use the entire idea, I'll just take inspiration from IT. I need an action/adventure fanfic prompt (no romance please) with no slash, AU/OC elements 或者 fanon references. Just a nice little idea, not above T.
Thanks, and you'll get credit when I start the story :)
Remember, it's a PROMPT, not a whole idea...maybe a small quote 或者 small synopsis 或者 anything but not a FULL IDEA.
你 can include Gods and it'll take place after TLO just no made-up pairings (Thaluke, Thalico etc) 或者 whatever. Maybe a quest idea, who knows?
Thanks for your help and 支持 will be 给 out to everyone who 答案 :)