What do bald men in skirts, ancient Greeks, pompous popes, and bickering bishops have in common? They all took part in shaping the calendar that hangs on your wall. Together with a host of famous and not-so-famous others, they adjusted, fine-tuned, and tinkered around with what would eventually become the western world's most popular tool for keeping track of time.When a crotchety, down-on-his-luck old man turns up as a temporary employee in Lindsie's father's bookshop, she and her friend Evan feel sorry for him. But after they follow him to his makeshift home, Mr. S. Kronos (aka Father Time) drags them on a wild ride through 5,000 years of hilarious history, insisting they meet the calendar's creators. Lindsie and Evan will never take the calendar for granted again.