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We exploit the first data release from the Gaia mission to identify candidateMira variables in the outskirts of the Magellanic Clouds. The repeatedobservations of sources during the initial phase of the Gaia mission is used toidentify stars that show signs of variability. This variability information,combined with infrared photometry from 2MASS and WISE, allows us to select aclean sample of giants in the periphery of the LMC. We find evidence for Mirassurrounding the LMC out to ~20 deg in all directions, apart from the North-Westquadrant. Our sample does not generally follow the gas distribution of theMagellanic system; Miras are notably absent in the gaseous bridge between theLMC and SMC, but they are likely related to the stellar RR Lyrae bridgereported by Belokurov et al. (2016). The stellar stream discovered by Mackey etal. (2016) to the North of the LMC is almost perfectly delineated by our Miravariables, and likely extends further East toward the Galactic plane. Thepresence of an intermediate-age population in this stream advocates an LMC discorigin. We also find a significant excess of Miras to the East of the LMC;these more diffusely distributed stars are likely stripped SMC stars due tointeractions with the LMC. Miras are also identified in regions of the sky awayfrom the Clouds; we locate stars likely associated with known massivesubstructures, and also find potential associations with stripped SMC debrisabove the Galactic plane.

The Clouds are breaking: tracing the Magellanic system with Gaia DR1 Mira variables