Contaminant Six (Free-Wrench Series, Book 6‪)‬

The fug that poisoned the world has struck the Wind Breaker crew. After years of daring escapes and dangerous capers, it was only a matter of time before Captain Mack's crew felt the sting of the toxin that blankets their continent. They must split up, seek the aid of old rivals, and brave secret facilities to find the substance that may be the key to recovery. Join Nita and her friends on what may well be their final adventure.