Thor's face flamed crimson as he sprang to his feet, clutching his mighty weapon.

"The arch-traitor still seeks to ruin Asgard and the Aesir!" he roared in overpowering rage. "Oh, that I could bring Miolnir down upon his skull this moment!"

"Even your strength and mighty weapon would fail against the dark science of Loki," Odin said somberly.

I looked down bewilderedly at the gold cylinder hanging on my chest. Into my mind flashed the last lines of the rune-rhyme graven on it.

While I lie far,

The Aesir safe are.

Bring me not home

Lest Ragnarok come.

Those lines seemed to throb in my mind like a beating drum of black, dire menace that cannot be seen yet can be felt.

"I do not understand, lord Odin," I faltered. "Have I done wrong in bringing this small and apparently harmless key into your land?"