A Goodreads user
A Goodreads user asked Rick Riordan:

will we see anyone from the heroes of olympus series in magnus chase's world? i want to see how relationships worked out. but i mostly guessing we'll only see percy and annabeth.

Rick Riordan Hi, Magnus. Nice to meet you. Could you go stand in the corner while we focus on the characters from the last series? No. That's not going to happen. Sorry.
Rick Riordan

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