Reporters guilty of carelessness, or downright misrepresentation-though this was very rare-had been summoned to short and unpleasant sessions with Karellen’s underlings and required to listen attentively to playbacks of what the Supervisor had really said.
There are no more uses of "summon" in the book.
Show samples from other sources
I was summoned to the principal’s office.
I summoned all my courage and walked into the room.