![Mars Needs Moms!](https://nationalbookswap.com/pbs/m/90/9390/9781428739390.jpg)
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I looked carefully for Opus making a cameo appearance, no luck. I think that's a shame, since Breathed has done for Penguins what Gary Larson has done for cows and Scott Adams has done for dogs. However, he still has a lot of people in desperate need of face lifts.