Dr. De Lang, the Missing Alchemist

With a sad, yet calm look on his face, Dr. De Lang did not look like someone that would scare off other people by conducting terrible experiments. Observing the words he candidly spoke, I realized that his wife was Phyllia! He said he wanted to give Phyllia a Silver Pendant...

...A Silver Pendant? Come to think of it, didn't Eurek the Alchemist say something like the key to Dr. De Lang's secret note is made out of silver? I can't believe that pendant has been lying around in Dr. De Lang's house...