Publisher Eidos today announced that the first of two new Tomb Raider Underworld chapters, dubbed Beneath the Ashes, will hit the Xbox Live Marketplace on February 10.

Beneath the Ashes stars Lara as she traverses the remains of Croft Manor, a booby trap-laden network of interconnected caverns and ancient crypts home to a deadly power. For those interested, the pack will include six additional costumes and a whopping 125 achievements.

Lara’s Shadow, the second downloadable chapter, will be released on March 10. No word on pricing, though GameStop is offering both for $19.99, so it’s a safe bet that either will cost $10 if you choose to go the separate route.

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