With SpongeBob in tow, Mermaid Man flashes back to a previously forgotten era of his heroic history - his adventures as Monster Master of Terror Trench! But what's the improbable secret of Mermaid Man's former monster sidekick? Find out as MM and SpongeBob 'Return to Terror Trench!' Also: In part 4 of 'Lost Booty' the quest of two humble pirates for the greatest SpongeBob comic ever continues... in the belly of a whale! Plus: 'SpongeFunnies' by James Kochalka and ocean fact comics by Maris Wicks!