Verb conjugation of "festkleben" in German

I was tired and still felt a little ill, so that I agreed to meet the other family and they escorted me to the next building. The new family instructed me not to tell anyone where I stayed here.
I was a little confused because I recognized the voice and I had booked at Luisa's guest house. She explained me that she was sharing the phone with her neighbor and her neighbor was not honest.
The cemetery in Recoleta was worth seeing, although I do not like hanging around these places for too long. From there we continued to the market but found it boring so that we kept on going.