Joe "Cal" Callahan is a security expert.

In Heaven and Hell, Sam Cooper calls him when when the security system he installed in Sam's House is breached.


"Joe Callahan was tall, dark, built and unbelievably gorgeous. He also had a scar on his face that marred his perfect male beauty in a way that was hot but also made him more than a little bit scary." - Ashley, Kristen (2011-12-28). Heaven and Hell (Kindle Locations 11250-11251).


  • Cal's story is told in At Peace
  • The Promise, the story of his cousin Benny, also heavily features Cal including his wedding and the birth of baby Angie
  • Heaven and Hell
  • Bounty

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