A purchaser need not disclose any fact, unknown to the vendor, which increases the value of the property itself; e. g. the existence of a mine (w).

But anything, even a mere word, which tends to mislead the vendor upon such a point, will deprive the purchaser of the assistance of a Court of Equity (x).

And a purchaser is bound, in Equity, to disclose any fact, unknown to the vendor, which increases his interest in the property; e. g. the actual (y) or imminent (z) death of a prior life tenant.