A. B. Calder
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Urban Fantasy · New Adult · Trilogy

The Blood Seal

One covenant. Three seals. One truth.

Urban fantasy for young adults — about a girl who discovers, beneath Paris, who she really is.

The series

Beneath Paris, deeper than the Métro, lies the Refugium. This is home to the Ankerbund, and here a bond is guarded that was sealed in blood a very long time ago. Most who grow up there learn from childhood how to handle the Echo — the gift that makes feelings, traces and memories in objects perceptible.

Nele Hartmann did not grow up there. She is eighteen, she comes from a perfectly ordinary German family, and until the day a dry well gives way beneath her, she took the mark on her arm for a quirk of nature. In the Refugium she comes to understand that it is an inheritance — and that someone has been searching for its bearer for seventeen years.

The Blood Seal is a story of origins and belonging, of friendship and first love — and of a world in which almost everyone who gets close to Nele has a reason not to tell her the whole truth.

The books

The Blood Seal — Book I cover

Book I · Coming late October / early November 2026

Das Blutzeichen

She feels what others feel. She doesn't know where she comes from. And someone has been looking for her for seventeen years.

Nele was a foundling. From the time before Sabine and Thomas took her in, she has nothing but a scrap of faded cloth and a strange mark on her left forearm. On a school trip she loses control of a gift she has hidden all her life — and wakes beneath Paris, in a hidden city no one above suspects exists.

There lives the Ankerbund, which has guarded an ancient bond since time immemorial. Nele is to learn to master her gift. But when a friend is abducted, only she can read his trail. And every trail also leads back to her — to a truth someone has buried very carefully.

Who can she still trust?

Book 1 of the Blood Seal trilogy. Urban fantasy for young adults about origins, belonging, and an inheritance you don't get to choose.

Book II

Die Namenlose

The search for her origins takes Nele beyond Paris — to England and to Egypt, to where her story began.

Book III

Die Narbe

Coming after Book 2.