Professor Layton and the Heart of Tears

One of Layton's previous students has asked the professor for help to find the shards of a powerful artifact, the Heart of Tears. Accepting the request, Hershel Layton and Luke Triton gear for the adventure, but on this journey, there will be no one to trust. Shame that Layton doesn't know. Contains spoilers for all Layton games starting with Unwound/Lost Future.