After 172 episodes, it is obvious that have difficulties to find the authors new topics, which could be felt in the last few years especially. All the more refreshing, I found the latest episode that had to offer both a new venue as new topics and has still maintained the old "treasure hunt" structure. I especially enjoyed the art concept in the works of Drago Martinez told me that seem to be inspired by real artists like Schwitters and Duchamp. The history of the island as bioweapons test site appeared credible. Towards the end it is a bit hard to keep track of the characters and the resolution seems a bit random and very happy ("oh we already sit directly on the treasure, and alas there's even Inspector cotta to save us"), but OK. I found it overall a well-researched and intelligent sequence that would have something better elaborated at the end may be.