Sacred Haven of Debauchery

All other installments in the series are buried in this grave and rotting. And only a beautiful marble tombstone somehow saves the situation...

Once upon a time, there was a brilliant scientist and engineer who invented various gadgets, came up with different theories, conducted research, and so on. And then he died at the age of thirty from something, and all that remained of him was a beautiful marble tombstone. The same goes for the heroes.