Minerva accepted the phone from the security guard.
'Minerva Paradizo speaking.'
'Minerva, this is Artemis Fowl,' said a voice in perfect French. 'We met once across a crowded room in Sicily.'
'I know who you are; we nearly met in Barcelona too. And I know it's really you. I memorized your voice pattern and cadence from a lecture you gave on Balkan politics two years ago at Trinity College.'

The Lost Colony, Chapter 8