 Thank you. Now, I'm going to talk about the Blätterhülle, which is really an excavation project and research project that keeps us busy for, let's say, 15 years now, 14 years to be more precise. And as Annabelle has said, we publish a variety of papers, including on the paleogenetic and isotopic evidence of the existence of hunter-gatherer fishers up to the fourth millennium BC. The site is located towards the north of the Westphanian uplands, an area that we call Sauerland, within the town of Hagen, that is just south of the Ugebiet. And it's included in a Devonian limestone formation that is quite common here, as you can see, in the blue color containing lots of caves. We are talking about 500 caves in that area. More closely, the Weissenstein forms a prominent limestone ridge and also contains several caves, nine, I think. And among them is the Blätterhülle. Now, the entrance of the cave is found below steep cliffs, several meters above the valley floor. You can see it over here. It's quite a closed situation. And I'm not going to talk about the time schedule here. The important is that the whole thing started really with a radiocarbon date on a skullcap that turned out to be pre-boreal, early mesolithic. Without that, this, I think, nothing much should have happened here. Excavations are carried out within the cave and in front of the entrance. So in fact, we are talking about two sites. I'm going to talk about the entrance area or the area in front of the cave that is, in fact, a former rock shelter. Collapsed rocks were found on top of the stratigraphy and also within the sediments, improving the existence of a former abrilike situation. Intense dating of human remains found in the cave proved the use of the cave as some kind of a burial place during the late Neolithic and pre-boreal early Mesolithic. Similar situations like this are known in Belgium, close to Namur and Dinan, an area rich in caves as the area we have here. And that is about 280 kilometers away. The excavations prove the existence of early Holocene and at least final Pleistocene sediments several meters in depth in the area of the rock shelter altogether. More than 20 square meters were excavated, reached highly different depths and numerous profiles were documented, micromorphological samples were taken and so on, analyzing all the materials will probably last several more years. However, from an archaeological point of view, the uncovering of a complex Mesolithic stratigraphy within the sediments, covering a relatively small space below this rock cliff, was highly unexpected and is similar, is singular within the wider area. From the late Mesolithic to the earliest Mesolithic, several find layers were uncovered. Interesting is the presence of at least one typical mistletoe leaf that point to northwestern European Rhein-Marschelder or RMS tradition, increasing the small number of find spots east of the river Rhine. Generally, the early Mesolithic is connected to the so-called Baronian as several microlids prove and furthermore from the boreal, several AMS-stated hearth episodes are present. Now here, halting and retooling, repairing of hunting equipment took place, proved by an arrow shaft smoother and dominance of mostly impacted and fractured microlids in the inventories. Corboring by the University of Cologne, proved that below this Mesolithic find horizon, some four meter of plastic sediments are present and that raised the hope to reach even older sediments with archaeological remains, at least dating to the final place of scene. And that was not disappointed. In 2016, the first stratified and clearly not Mesolithic tool, slender partially back point, was found far below the oldest Mesolithic find horizon. And later on, a new grayish brownish sediment matrix was labelled as Sediment 6C. You can see that on the base of this stratigraphy right behind me, below this Mesolithic find horizon. On top, the base of parts of the Sediment 6B are present, close to the back wall of the rock shelter, highly biotubated, as it is usually the case. Above this profile, the Sediment 6B is the Mesolithic stratigraphy. On its base, as it is shown here, we have numerous shattered limestone fragments, rare lithics and only a few bones. But below this gray Sediment 6C that is also attached to the back wall of the rock shelter is this gray sediment. Remastered with this free software destretch, the grayish Sediment 6C is clearly visible to the north of the profile. The colouring of the Sediment is a consequence of black carbon inputs. So a harsh must be nearby, where also napping activity took place in the surroundings. So below that, a lust-like Sediment 8 was defined within this is a distinct reddish horizon, although it was analysed using RFA as a natural accumulation of iron oxide minerals. And below that, a big limestone block came to light. Within this Sediment is 8 that almost contains no finds. Sediment 6C is in contrast to that quite numerous, we have quite numerous artifacts, very tiny chips and debitage, also several back points and other tools. So let's talk about the lithics. Now on the basal part, as I said on 6B, where only but clearly below the mesolithic horizon, we have a few shattered lithics among them these different back pieces. Now a slender piece was already mentioned to the right. Another point with a straight back and a broken piece shows basal retouch that makes it a variant of a back points of Malorie type. The inventory of Sediment 6C is much richer than that. We have several back points of different variants, only slightly or partly backed, an angled back piece with a thin back edge, perhaps resembling a knife and highly scattered back pieces due to impact fractures as the bipolar fractured point with a thick back and two small back bladelets. Now one back point shows some kind of a tang and a real slender tang point, that one here, is also a projectile and that is proved by Microware analysis. Now furthermore, some large blades and bladelets, sometimes edge retouched or used were found and end scraper on a short blade and a flat core recycle to a splintered piece. Last year we had a typical Microburin and a slender borer missing its elongated tip. Most of the lithics are made of patinated flint, which is in fact erratic Baltic flint from the rivers. Some pieces like the Microburin might represent western European flint variants and here further work has to be done. Now the more we have several lithics that is made of local raw material, so called lidit. As in the Mesolithic horizons we have some pebbles, among them is a retoucher. If we are looking for any comparison dating to the finer Pleistocene early Holocene transition we have to look to the west and here at least in western France assemblage is containing a right collection of back pieces and are labelled as epilaboria. However further elements are labelled as diagnostic as some kind of degenerated tank points. Chipesial microliths while the last type is missing in the assemblage. We have here a tank point is present, but again missing is the distinct Le Blanc Cher back point, which is a typical and mainly present in western France within this period, but as an exception, with a proved exception in Belgium and England also present. Other finds labelled as Le Blanc Cher points in the east are found within Arendt's Boogeyon or EP Arendt's Boogeyon context. However, it seems to us we have uncovered at this Blätterhöhle rock shelter a new kind of assemblage of a terminal Pleistocene early Holocene transitional period that shows clear inferences from the west as the Mesolithic does. While others of that time in our region, namely the long blade industries are a derivative of the Arendt's Boogeyon which is on the other hand has expanded far to the west as the Belosian side in France show. It seems that in northwestern Europe during this short period of time we have several techno complexes that suddenly appear, improving inferences from different regions and shortly after disappear again or evolve into earliest Mesolithic techno complexes like for instance the broad blade Mesolithic. A short period of time with its major environmental changes in our region saw a highly dynamic interchange of ideas and innovations which seems to be much clearer now than only some 10 years ago. Now we will continue to work in the final Pleistocene sediments this year as excavation is running as we talk now but space is getting small, money anyway and it looks as if we have to leave this part of the stratigraphy and have to concentrate on other areas of the rock shelter and the interior of the cave. Now this multiple, multiple results of some 15 years of research at the side were really highly unexpected when in 2004 the spelogists showed up with their idea to explore this tiny narrow hole in a limestone cliff at Hagen. I have to thank the following people who are or were involved in the project and for your interest.