Dr. Doron Keren, a 1987 grad­u­ate of Colum­bia Uni­ver­si­ty School of Den­tal and Oral Surgery, had a suc­cess­ful career as a den­tist for over 30 years. Doron, now retired from den­tistry, is pur­su­ing his pas­sion project of pro­duc­ing a TV series based on the mem­oir of Doron’s grand­fa­ther, Igna­cy Chiger — Beneath the Light­less Sky, and his mother’s book, The Girl in the Green Sweater, by Krysty­na Chiger, aka, Kris­tine Keren – the inspi­ra­tion behind the 2012 acad­e­my award nom­i­nee for best for­eign lan­guage film, In Dark­ness, direct­ed by Agniesz­ka Hol­land. Beneath The Light­less Sky will be pub­lished Jan­u­ary 27 th , 2026, by Ams­ter­dam Publishers.

Keren’s fore­word calls his grand­fa­ther ​“a real-life super­hero,” a man who out­wit­ted his inter­roga­tors, evad­ed depor­ta­tion, and pre­served a small com­mu­ni­ty under­ground with only the faintest flick­er of light.

As a Sec­ond-Gen­er­a­tion Holo­caust Sur­vivor – a 2G – a liv­ing link to the past, Doron is com­mit­ted to shar­ing his family’s remark­able sur­vival sto­ries, edu­cat­ing future gen­er­a­tions and inspir­ing young minds, empha­siz­ing that Nev­er Again is Not Just Now – Nev­er Again Is Always.