Piper: "Hey, she's wearing my lipstick."
Prue: "What, I can't borrow your lipstick?"
Piper: "I didn't say that, Prue, I thought it."
Prue: "Whatever, just learn to share."
— Prue and Piper hearing each other's thoughts for the first time.[src]

To Hear Secret Thoughts is a spell written in the Warren Book of Shadows. It allows the caster to hear and eavesdrop on the thoughts of anyone around them.


Thinking the men in their lives may be warlocks, Prue Halliwell and her sister Piper cast this spell in order to determine whether or not Jack Sheridan and Dan Gordon were warlocks—Prue suspected Jack was evil because his twin brother appeared in another place than Jack was, she assumed he blinked due to not knowing he had a twin; Piper, Dan because Kit hissed at him. They resorted to this spell because they did not know about the simple technique of pricking a suspected warlock to see if they bleed as a method of warlock identification.

Prue Piper Thoughts

Prue and Piper casting the spell.

With two blue candles lit and the Book of Shadows opened to the spell aloft on the living room table, Prue and Piper recited the words of the spell and began to hear each other's thoughts. Phoebe showed up at the Halliwell Manor and they could hear her thoughts as well.

At Buckland Auction House, Prue awaited Jack's arrival; he stumbled into the office and Prue began to hear his thoughts—"I put people in graves or incinerate them". She then assumed this was because he was evil, not because he owned a chain of mortuaries—which she later finds out after she pricks him and he bleeds.

Back at the manor, Dan came by and she heard how nervous he was about her coming to Tahoe with him. She then did the blood test and learned he was human. However, in the end, the spell served a greater purpose allowing the sisters to hear the Collectors' plan of attack allowing it to be thwarted leading to the warlocks' demise.[1]

Book of Shadows[]

To Hear Secret Thoughts RA

Phoebe flips past the page in Reckless Abandon.


A scan of the page from the real book.

To Hear Secret Thoughts[]

Light a blue candle and chant:

As flame lights shadow
And truth ends fear
Open locked thoughts
to my mind's willing ear
May the smoke from
this candle into
everywhere creep
Bringing innermost voices
to my mind in speech.