Lost Pet: Zek

Circumstances

Zek (2) has been missing now for over 3 days and we're getting increasingly worried as he never strays far and he's usually back in the house before dark.  He might be with our other cat, Monty (12), who is also missing and is a striped brown/gray/black domestic short hair with one eye that looks a bit cloudy.  Zek has a fully gray shiny coat.  He's the sweetest cat.  Unfortunately doesn't have a collar, but does have a microchip.  Pls, if you know anything about where he (or Monty) are, pls reach out to us.  His family misses him very much and is so very worried.  $ Rewards for info leading to a safe return.