Valhalla Rising

Marine explorer Dirk Pitt must rely on the nautical lore of Jules Verne to stop a ruthless oil baron with his sights set on political power in this #1 New York Times-bestselling series.

In the middle of its maiden voyage, a luxury cruise ship using revolutionary new engines suddenly catches fire and sinks. Its alarms stay silent; its sprinkler system remains inactive.  Nearby NUMA special projects director Dirk Pitt notices smoke and races to the rescue. He's too late to save the engineer behind the ship's new technology, but helps the man's daughter, Kelly Egan, escape with her father's work in a leather briefcase. 

While Ms. Egan strives to uncover the hidden value in her father's inventions, Pitt is hired on by maritime insurers to investigate the wreckage. Neither are prepared for the mechanical marvels they'll soon be forced to confront. The machines could only be the stuff of legend, described in the tales of Viking explorers or the accounts of Jules Verne. And they may be Pitt and Egan's only hope when an oil tycoon with a plan of his own appears on the scene. 

Before journey's end, Pitt will take on a power-mad millionaire, tread upon territory previously known only to Verne's illustrious Captain Nemo, and make shocking discoveries about his own past.

Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.

In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.

The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.

Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:

Omnibus

• Large, hardcover collections
• Usually contain complete runs or extensive story arcs
• Typically 800-1000+ pages
• Higher price point, often €100-€150

Oversized Hardcover (OHC)

• Similar dimensions to omnibus, but thinner
• Collect shorter runs or story arcs
• Usually 300-600 pages
• Priced between €30-€50

Hardcover (HC)

• Standard-sized hardcover books
• Collect 6-12 issues typically
• Similar dimensions to single issues, but with a hard cover
• Priced around €25-€35

Trade Paperback (TP)

• Softcover collections
• Standard comic book size
• Usually collect 4-6 issues
• Most affordable option, typically €15-€25

Other Formats

• Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
• Compendiums: Massive paperback collections
• Graphic Novels (OGN/GN): Original stories not previously released as single issues

The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs