Biggles prompt ficlet: TW self-harm

Tumblr prompt: I know some people are sensitive about this subject - but I suddenly thought of how Biggles would react if he saw self-harm marks/bandages around Erich's wrists (or anywhere I suppose) and he'd instantly fly into his little protective lecture!

TW for (non-graphic) self-harm in the following ficlet!

( 1100 words, non-graphic self-harm )