Just been re-reading David Eddings' "Belgariad" series. An excellent fantasy series, but I just spotted this "howler" in book 4 of the series:
"The Mrin Codex was an ancient-looking scroll..."
Mr Eddings really should go and look up the word "Codex" in a dictionary and find out what it means

.
Despite such errors, a series I can thoroughly recommend to anyone who enjoys "swords and sorcery" type fantasy novels.