Read a this tale long back need help identifying King. It goes like one day King kills wife out of jealousy & distrust. Loses sight due to this event. Goes on penance realises his mistakes after guidance sage/god. Regains sight after asking for forgiveness. Renounces his kingdom & makes his missi...

When I was in primary school (before 2014) I was obsessed with this books series about kids living in ancient Greece and going through Greek life. There was a book about them living through Pompeii and one on slavery too but I can't remember what the series was called and I only have a vague idea...