Biologically; just over 15 Chronologically; 18 Quantum-Chronologically; 15 Mentally; 20 (everyone's mental peak) Emotionally; ?? When he was a CDP (Chronologically Displaced Person (time traveller); 10 and 19.
Artemis Fowl series - Eoin (pronounced Owen) Colfer author of the Artemis Fowl series. Even though the series is written for young readers - as an adult - I thoroughly enjoyed every word! Good, clean, exciting and fascinating! I couldn't get enough of it and am anxious for the next...hopefully, there will be "a next"!