Columbo (Tor Series) is a 5-book series with 5 primary works first released in 1994 with contributions by William Harrington.
#3 of 5 in Columbo (Tor Series)
1995 • 1 Reader • 260 pages
#4 of 5 in Columbo (Tor Series)
1994 • 1 Reader • 224 pages
#5 of 5 in Columbo (Tor Series)
1997 • 1 Reader • 196 pages
#6 of 5 in Columbo (Tor Series)
1998 • 1 Reader • 224 pages