Trees know things. A tree planted by a god at the dawn of a forest and raised in close proximity to an energy well beneath a wizards’ citadel knows a great many things. In this tale, a wizard-assassin loses what is most dear to him and thereby learns the true nature of his art.
The protagonist of "The Om Tree," Lorth of Ostarin, is the main character in The Hunter's Rede, Book One in the Chronicles of Ealiron. An Om tree appears in the novel as well; it stands in the wizards' citadel itself.
"The Om Tree" is also included in Wizards, Woods and Gods, a collection of twelve dark fantasy tales exploring the mysteries of the Otherworld through tree and animal lore, magic, cosmos, love, war and mysticism.