Essential Thor, Vol. 3 (Marvel Essentials);

Trolls, giants, aliens and clowns await in the third thunderous anthology of Thor! The Mighty One faces a god of death! A living planet! Ragnarok itself and...a jail term!? Kang the Conqueror, the Super-Skrull and more! Featuring the first appearance of the scintillating Sif! Plus: the origin of that perennial perilous party crasher, the Wrecker! Guest-starring Adam Warlock and Galactus!

Collecting:

Thor #137-166