Jen closed her eyes for a long moment, chastising herself for trusting too much, then chastising herself for paranoia.  She drew her arm across her body at eye level, leaving the cracling, semi-solid red blade behind.  "This is the Bloodsword," she explained, "It interacts only with thoughts, leaving only pain, not true injury.  I can incipacitate any living thing with no lasting harm.  I've never tried it, but I also think I can use it to interact with a telepath's probes or attacks."