Pirate Mom by Deborah Underwood.

She wears an eye patch, red polka-dotted head scarf, and a parrot on her shoulder. She swishes her wooden spoon around like a sword and yells, “Arrr!” and “Give me your loot!” Pete’s mom thinks she’s a pirate. Ever since Pete and his mild-mannered mom went to go see the Amazing Marco’s magic show, she has been under Marco’s hypnotic spell. He put her in a trance and told her she would be a pirate when she woke up. It worked! At first it was fun to have a pirate for a mom, but now Pete is worried. He misses his mom and she’s kind of scaring the neighbors with all of her rough pirate ways. It’s up to Pete to find a way to help his swashbuckling mom. This fun story will tickle kid and parent alike.