Four children-Charlotte, Emma, Tom, and Ethan-travel back in time to the year 1250, landing in the heart of the Khmer Empire near the majestic Angkor Wat temple in Cambodia. They land in the house of Vannak, who in charge of the sophisticated hydraulic system that keeps Angkor from turning into a muddy mess. A royal messenger arrives with a crisis: a Very Important Letter must be delivered to the mother of a royal minister, and trust is in short supply. Naturally, the job falls on one water engineer, helped by four random time-traveling children. Echoes of Angkor Wat is a laugh-out-loud, whirlwind tale of chaos, courage, and Khmer mishaps, set amidst the majestic buildings and vibrant culture of one of humanity's most iconic empires. Bursting with eccentric characters, unexpected twists, and a hearty dose of adventure, it's a delightful celebration of history, humour, and imagination.