If you are looking for a "Book 3" specifically associated with the name , you might be thinking of:
A children's book series by Steven Butler. Rabenblut Drangt 03 Hotel, Nikola epub
A different series by Nikola Hotel titled Tausend Gefühle . If you are looking for a "Book 3"
Available in epub/Kindle and paperback formats on Amazon and Goodreads. Book 2: Rabentod: Auf Schwingen getragen Rabenblut Drangt 03 Hotel, Nikola epub