A hint perhaps? The pictures seem to hint at the following locations in Diablo II: Icy Cellar, Drifter Cavern, Frozen Tundra. Remove the words that we have been given and you are left with: Drifter frozen cellar! If I recall correctly, wasn't Diablo referred to as a drifter in the Diablo I closing cinematic? Could Diablo be locked in a frozen cellar?