Deborah Baker first introduced me to this series of books in 1982, and I read the first nine
in the 1980s. The books are set in a pun-infested world in which people have individual magic
powers that they must discover. The first time travel that I remember was in the 1979
Castle Roogna where characters could step into a tapestry that took them to the past.
It was embroidered with scenes from the ancient past of Castle Roogna and its environs,
eight hundred years ago.
1 English variant