The look that says, I'm going to make your life hell: How Cameron faces the deadliest of enemies in Queen Nicola of Scotland

Having secured a shock overall majority, David Cameron appears to be master of all he surveys. But the Prime Minister now faces the deadliest and most toxic of enemies - the yellow peril that is the new, super-strength SNP.

The scale of the Scottish Nationalists' achievement in this general election cannot be overstated. Even the party's high command is stunned by the result. As one senior Nat put it to me yesterday: 'It is beyond our comprehension for us to have won as big as we have.'    

Its vote share was 50 per cent, the highest in Scotland's history, and it ousted every big name in its path. As one wag put it, there are now more nuclear submarines in Scotland than there are MPs who support Trident.

Nicola Sturgeon is, in effect, queen of Scotland. 

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The eyes have it: Nicola Sturgeon (left) casts a defiant glance at David Cameron (right) at the VE Day ceremony at the Cenotaph today

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Unimpressed: SNP leader Nicola Sturgeon seems to ignore former Labour leader Ed Miliband whose party they took 40 seats from overnight

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Despite the SNP's success in Scotland, it was clear Sturgeon (right) had not lost her focus as she lined up next to Prime Minister David Cameron (pictured) at the Cenotaph in London for the 70th VE Day anniversary

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Nicola Sturgeon (left) stands alongside Westminster political heavyweights as they lay wreaths at the Cenotaph this afternoon

Sturgeon has an overall majority in the Scottish Parliament and now runs the third-largest party at Westminster. As of yesterday, the separatists' writ runs deep and wide. They have replaced Labour as the Scottish establishment, and dominate its political and cultural institutions.

So has the Prime Minister got the political will, and skill, to contain and eventually nullify the threat?

He must be on his mettle from the outset, because his opponents are expert guerrilla fighters and will try to use their new eminence and heft to drive the United Kingdom ever closer to destruction.

Certainly, it seems reasonable to assume that Sturgeon's massed ranks will provide the most effective opposition to the Tory Government. They also have one of the wiliest politicians at Westminster in the returning Alex Salmond and, pulling the strings in Edinburgh, the steely Nicola Sturgeon.