In April 2009, Revol attempted Annapurna with Czech climber Martin Minarik. After abandoning several attempts to gain Annapurna's main summit via the south-facing Bonnington route, Revol and Minarik reached Annapurna's East Summit via the 7 km ridge (altitude between 7,000 - 8,000 m) connecting the East summit to Roc Noir. Here, Revol and Minarik retreated, making no further attempt to gain Annapurna's main summit due to high winds. They returned to their high camp for the night, retracing their steps in the general direction of Roc Noir (7,485 m). The next day while continuing their descent, weather conditions deteriorated and Revol and Minarik were separated somewhere above 7,000 m. Unable to locate Minarik in the deteriorating visibility, Revol continued her descent alone, taking a (mostly) North/north-east facing col in the direction of Tilicho Lake. The following morning, after spending the night in a crevasse somewhere around 6000 m, Revol reported seeing Minarik descending the ridge at the top of the same col she took leading to Tilicho Lake. However the weather closed in rapidly and she lost sight of him. Out of food, water, fuel, and phone batteries, Revol continued her descent, eventually reaching the village of Manang from where she arranged for a rescue. A helicopter search was mounted (Fishtail Air); a multi-day ground search was also conducted by a small party of Sherpas. The ground search was abandoned after several days after becoming too dangerous to continue on with gaining further elevation in search of a sign of Minarik. Despite these extensive search efforts, no sign of Minarik was found. 