Several weeks ago, the white “ghost bike” that had been attached to a pole at the intersection of Lafayette and Maryland avenues disappeared. It had been placed there in August 2009 in memory of local cycling advocate Jack Yates, who died in a collision with a truck at the intersection, but a recent traffic accident had dislodged it. It’s unclear who actually witnessed the incident, but on a Saturday afternoon suddenly there it was in front of Station North’s Bohemian Coffee House, where its passerby rescuer hoped to pass it off to someone who could ensure the bike’s safety. Apparently someone was summoned from the Velocipede Bike Project around the corner on Lanvale Street, and it’s rested there since. It should be returned to its permanent home in the next couple of weeks, with the help of longtime local bike advocate Rod Bruckdorfer.