Chutes and Adders — Barbara Block

Recently widowed Robin Light runs Noah's Ark, a Syracuse pet shop specializing in puppies and parakeets, bunnies and boas. Robin can't resist rescuing a stray kitten--or finding the vicious killer who set her up to take the rap...for murder.

Deadly Venom
The package looked innocent enough...until it was opened and the rare, saw-backed viper attacked. By the time Robin got her co-worker to the hospital, he was dead, the cops had unearthed a small fortune in her shop's heating vent, and she's been fingered as the prime suspect in a particularly nasty murder case.

Now, as Robin struggles to clear her name and to keep Noah's Ark afloat, she finds herself following a trail strewn with corpses...straying far from her pampered pets and into a den of venomous secrets where someone stalks her with the cold-blooded skill of a cobra...someone coiled and ready to strike.