The Secrets of the Wild Wood (Dutch: Geheimen van het Wilde Woud, pronounced [ɣəˈɦɛimə(ɱ) vɑn ət ˈʋɪldə ˈʋʌut]) is a Dutch children's book written by Tonke Dragt in 1965.

It is about a young boy who has just been knighted, Sir Tiuri with the White Shield, and his squire Piak.

He tells him that he saw Ristridin in the Wild Wood in the winter, battered and crying as he carved letters into a tree.

Bendoe and Ewijn travel to the border where the invasion took place, but Tiuri decides not to go and goes into the Wild Wood with Piak and the Fool.

Next to the castle where Tiuri is now imprisoned, the prince has cut open a forgotten road to the Kingdom of Unauwen and is preparing a surprise attack.

Meanwhile, Piak tries to find help and meets Sir Ivor, who is on his way to the Wild Wood to investigate the rumors.