The Silent Pool is a spring-fed lake at the foot of the North Downs, about 6.5 km (4 mi) east of Guildford in Surrey. It is managed together with the nearby Newlands Corner by the Surrey Wildlife Trust, within the privately owned Albury Estate. The outflow from Silent Pool runs into a second, adjacent, lake, Sherbourne Pond, created in the mid-seventeenth century. In turn the outflow from the Sherbourne Pond feeds the Sherbourne Brook, a tributary of the Tilling Bourne.
Silent Pool is considered by some to be a sacred site. It is linked to a folklore tale that says King John on his horse abducted a woodcutter’s daughter who was forced into the deep water and drowned. According to the legend, the maiden can be seen at midnight.
In December 1926, when crime writer Agatha Christie infamously disappeared, it was feared that she had drowned in the Silent Pool after her car was discovered at nearby Newlands Corner.