After six months of collaboration, our guests from the WASCAL program, Rotimi Obateru and Emmanuel Aweda, are leaving us and returning to Nigeria. We can look back on very intensive technical discussions and four manuscripts that were successfully prepared during this time. Thanks to Dr. Teucher and Alina Schürmann for their great support during the preparation and the visit. We wish Rotimi and Emmanuel all the best on their way to their doctorates!