This is a tale of two companies, and one hell of a day for those two companies.

It all began when Square Enix released their financial reports, which included a revised forecast for the financial year ending March 31st, 2009. With Taito's amusement division and offline games predicted to underperform for the remainder of the year, sales are expected to be 16.9 percent lower than before, and net income 62.5 percent lower.

While the results for games (online), mobile phone content, publishing and others segments have been progressing at a rate exceeding the figures previously planned, amusement (Taito) and games (offline) segments are projected to underperform the figures previously planned due to severe business environment for amusement, and the adjourned release of a major game software, which was originally announced to be released in March 2009. -- Press release, via Kotaku

No points for guessing which game they are referring to.

So, what to do when you're in such a situation? Buy, buy, buy! That's what Square Enix appears to be doing, as they've reached an agreement to purchase Tomb Raider publisher Eidos for £84 million (USD$120 million). And according to Square Enix, that's 129% over the company's current value.

You can read the letters announcing the agreement here.

Of course, for the deal to be official, 75 percent of Eidos' shareholders have to agree to it at the company's next meeting, which takes place early next month. But, will they want to?

Well, according to the London Stock Exchange, it looks like yes, they certainly do. Shares in Eidos have since skyrocketed:

Closing at only 14 pence yesterday, shares of Eidos stock on the London Stock Exchange are currently trading at 31.75 pence, or .25 pence below the 32 pence per share Square Enix has offered to buy out the company in their proposed £84.3 million bid for the troubled Tomb Raider publisher. The market opened today with a sale of 178,000 shares selling at 27 pence per share, with more than 16 million shares changing hands as of this writing. The sheer volume of trades is staggering, especially when considering the highest volume Eidos saw through the whole of last year was

The jump is of course a direct result of Square Enix's bid, as both individuals and arbitrageurs - companies that buy large amounts of stock in order to secure small but high-volume profit with minimal risk- rush to grab as much Eidos stock as possible before the deal goes through. -- Kotaku

You can see an illustration of how the stock has fared at the top of this article.

Kotaku also notes that while the deal isn't 100 percent in the bag, it should be better than the long, drawn out affair that was the EA/Take-Two takeover bid which consumed headlines across 2008. Having both companies actually in agreement probably helps.

At the same time, it's a curious investment for Square Enix. Other than the upcoming Batman: Arkham Asylum, which is still a "maybe" despite looking quite nice at this point, what else is there really worth getting in buying Eidos?