Midas

Midas was a king in Greek mythology. He was famous for his wish of everything he touched turning into gold being granted by Dionysus when Dionysus visited him. Midas had a son named Lit (short for Lityerses ) and a daughter named Zoe. When Dionysus's stepfather and satyr friend, Silenus, went missing for drunkeness, Midas discovered him when his servants brought Silenus to him. He kept Silenus to entertain him for ten days. On the next day he sent him back to Dionysus in modern-day Lydia. Dionysus was so pleased he granted Midas one wish; and Midas demanded the Gold Touch, which was given to him immediately. He was happy, for everything he touched turned to gold, until he tried to eat and his food turned into solid gold. Midas begged Bacchus (Dionysus) to take the "curse" away, and Bacchus commanded him to bathe in the river called Pactolus. He did, and he "washed" the curse off of him, and left a poorer but wiser man. Later he helped judge a music battle between Pan's pipes and Apollo's lyre. He was the only one who voted Pan and Apollo said "you will have the ears of a donkey," and Midas grew the ears of an ass. His barber was the only mortal who knew and he swore not to tell. One day the barber could not hold his promise, dug a hole, whispered the secret and covered the hole again. A thick bed of reeds grew from the meadows, and told the story, whispering, "King Midas has ears of a donkey."

The Battle of the Labyrinth
In The Battle of the Labyrinth, Percy mentions King Midas, saying Rachel looked like he touched her while she was painted gold.

The Lost Hero
Midas was one of the dead brought back to life by the opening of the doors of death, appearing in a river front mansion in Omaha Nebraska. When Piper, Leo, and Jason crashed into his mansion, he was polite. Midas told them that it was a silly story that he learned his lesson when he touched his daughter, turning her into solid gold. Midas touched Piper's backpack, turning it into flexible gold and making it magic, proving he still had the magic touch. Midas admitted that he'd sometimes pat his son Lit on the back accidentally, but he always had the river to rinse it off. He also added that he had turned his daughter into gold, but she was so annoying he just kept her that way. Midas finally revealed he was working for the Giants, and turned Leo and Piper into gold. He gave Jason a choice: turn into a nice gold statue for his collection, or fight Lit and die. Midas talks about how Lit and he fought off Artemis's Hunters before Leo, Piper, and Jason came. Jason decides to fight Lit and Midas. Jason wins and turns Piper and Leo back before they leave.