Magical mythical creatures

Recently, a mysterious backpack was handed over to us. It was discovered during cleanup work in the attic of an old house. It apparently belonged to Professor Magnus, the former owner of the old villa. Rumor has it that he liked to go searching for magical mythical creatures at night. He documented many of his findings, and some information about this can still be found scattered around the city. His greatest dream was to one day catch a glimpse of the Fufflefy, a hybrid creature made up of several mythical beings. Whether he succeeded, no one knows. But perhaps you can manage to interpret the hidden clues correctly and track down the Fufflefy yourself.