The third book in the Koko/Qwilleran series, 'The Cat who Turned On and Off', is my favorite of the three I've read!
The Qwilleran household now has three residents! Yum Yum, a chocolate Siamese cat (the same as Koko except she's a female kitty) has been added. She had become unwanted in the Tait household when her mistress died in the previous book, so she was adopted by Jim Qwilleran. The outcome of the previous adventures resulted in the trio in need of a new roof once again. It isn't easy to find a new home! It's also Christmas, so it's good the cats keep Qwilleran in happy spirits despite his nagging ex-mother-in-law, writing again for more money to keep Jim's ex-wife in her treatment program.
When he receives a memo from the Daily Fluxion's managing editor reminding staffers of the $3,000 in cash prizes for the winners of the annual writing competition, Qwilleran comes up with a great idea for winning the contest. His new home is a room in the Cobb Mansion, situated in 'Junktown', a district of rundown townhouses formerly owned by the elite of the city. It is now where many antique shops reside and compete for customers. When he proposes to the feature editor, Arch Riker, his idea to profile the antique store owners and their customers Riker loves the idea, especially since his wife Rosie is a 'junker'.
It isn't long before Qwilleran learns the Junktown community is in mourning over a shocking death of one of their own. Andrew Glanz fell off of a ladder, and ended up speared on a finial. No one suspects murder - at first. But as Qwilleran becomes friendly with the other shop owners he begins to pick up disquieting stories of past and current quarrels, ghosts, jinxes and illegal scrounging for abandoned goods in old houses set for demolition. Besides making new friends, and thankfully, finding a great apartment to rent, he decides to find out if Glanz's death was an accident or a murder.
Fortunately, Koko is there to put him on the right track when Qwilleran frequently gets it wrong!
Koko always knows best, even if all he can say is "Yow!'