THE REAL COST OF KATE'S WAR WITH CANCER!

William's drained wife is an exhausted shell

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THE world rejoiced when Princess Kate announced her cancer was in remission - but sources reveal her brutal battle with the devastating disease has taken a harsher toll than she's willing to admit by stealing her zest for life!

"Kate has been emotionally crippled by the vicious impact the cancer and its treatments have had on her," whispers a palace insider. "She's mentally and physically exhausted and slogging through even the simplest of her duties. Those around her have noticed she has lost her spark and enthusiasm." On Oct. 10, the 42-yearold Princess of Wales attended her first public engagement since completing chemotherapy following her cancer diagnosis earlier this year.

Alarming photographs from the event show the future Queen of England looking drawn and tired with noticeable dark circles under her eyes.

But the loving mother of three didn't let her personal struggles stop her from tagging along, unannounced, with her husband, Prince William, on a grim mission to comfort the heartbroken families of three children and a teacher killed in a brutal knife attack on a Taylor Swiftthemed dance class.