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Lion-O frees the child Thundercats from Mumm-Ra's spell, and then confronts him to retrieve the fabled Book of Omens.
Did You Know?
The Cave of Time is shown to age whoever enters it in spurts accompanied by a turquoise flash, but in its introduction in "Trouble with Time", it had a gradual, subtle effect on its victims. See more
Boy, are those Lunatacs in for a surprise, when we turn up at Sky Tomb with a full-strength Thundercat force!
[the Feliner lands and the crew emerge revealing themselves to be young