The problem, Pelter, is that such things arent yet possible. You see, while its all very obvious to us as Players that Icathia is a real place in the desert northish of Bandle, and all very obvious that Malzahar is definitely the prophet of some coming doom, and that the Void is a horrible place full of scary things, the characters in the lore arent as certain. These things are all legends, old stories, and the ramblings of the insane. This line from Kassasin's background demonstrates:
"Despite its name, the Void is not an empty place, but rather the home of unspeakable things, horrors not meant for minds of men. Though such knowledge is lost to the modern day, there are those who have unwittingly discovered what lies beyond and have been unable to turn away."

The location of Icathia is completely unknown. The Void Spawn refuse to say anything useful, merely foreboding, even though given quite the stage when a Journal of Justice reporter L.B. Briskes sought answers from them. Not everyone is even convinced the Void is a problem, but with four Champions in the league going on about it, the sensible ones are scrambling to learn more, as Ralston speaks of with Delong in This issues' Mailbag of Justice.
"Of all the lands in southern Valoran, however, Icathia is one we know virtually nothing about."

There would be no mystery if all it took was an afternoon of Ezreal's time, and nothing would be unwitting if there was a big door marked 'Void' that we're all just too timid to open.

Yes. Believe me, I know. We all know, as players. The point was that storyline characters certainly do not, as is perhaps best emphasized in L.B. Briskes' "UnaVoidable Musings";

"Stories of the Void can be traced back to the lost city of Icathia, a place with about as much proof that it ever existed as you find competitive yordle high-jumpers (rockets excluded, cheaters). The believers generally agree that Icathia was located in the Southern half of Valoran somewhere, though details become muddled there. Many explorers have struck out to discover the place, but the only fact their findings universally corroborate is that just about everywhere south of the Great Barrier is malevolent, ominous, and spooky. The absence of evidence is not the evidence of absence, but surely after so very many forays into the southern wilds, someone would have found some lingering scrap of an entire civilization, right?"

dont people who see the void go crazy? so wouldnt that scare ezreal for life if he were to venture into the void